2x³ +x² -25x +12 factorised

Answers

Answer 1

The correct solutions for "x" after factorizing the cubic equation are:

x1 = -4

x2 = 0.5

x3 = 3

Cubic Equation:

A cubic polynomial in mathematics is a polynomial whose highest degree is three. A cubic equation is one that contains a cubic polynomial.

Either one real root or three real roots are present in every cubic equation. The cubic equation is written as ax^3+bx^2+cx+d=0.

Therefore, standard form of the cubic equation is: ax^3 + bx^2 + cx + d = 0

Given: 2x³ +x² -25x +12

On comparing with the standard form of the cubic equation, we get;

a=2

b=1

c=-25

d=12

After factorizing the cubic equation, we have three roots.

x1 = -4

x2 = 0.5

x3 = 3

To learn more about "cubic equation" here:

brainly.com/question/7764519


Related Questions

483000 in standard form

Answers

Answer:

483000

Step-by-step explanation:

To write a linear expression in standard form, rearrange the terms in alphabetical order.

Answer:

48300000

We can write the above number as

4.83 x 10000000

=4.83 x 10 ^7

I need help for number 2

Answers

The measure of the exterior angle for Object 1 - a decagon is 36°, while th measure of the exterior angle for Object 2  - a dodecagon is 30°.

What is a Decagon and a Dodecagon?

n object with 12 sides is called a dodecagon while an object with 10 sides is called a decagon.

Note that the exterior angles of all shapes, regular or irregular is 360°. In this case, the shapes are regular, which means that the sides are equal, hence their angles will be equal.

To derive the exterior angle of a regular geometric shape, the formula is given as:

Exterior angle measure = 360 / number of sides

Hence for A (the decagon), we have:

EAM = 360/10

= 36°

For B (the dodecagon) we have:

EAM = 360/12

= 30°

Thus the exterior angle for both shapes are 36° and 30° respectively.

Learn more about Exterior  Angles;
https://brainly.com/question/28835566
#SPJ1

What are the first 3 triangular numbers?

Answers

The depiction of numbers as an equilateral triangle organized in a series is known as a triangular number sequence. These numerals follow a 1, 3, 6 order.

Explain the term triangular numbers?

A number that may be expressed as the sum of the initial n positive integers is referred to as a triangular number.

For instance, the fact that 6 may be expressed as 1+2+3, being sum of the initial three positive integers, indicates that it is a triangular number. If one takes the sum of the initial positive integer to be the first element, then sum of the earliest two positive integers to be the second element, then so on, triangular numbers comprise a sequence. In this scenario, n signifies the position of such a triangular number with in sequence if a number equals the sum of the initial n positive integers. Triangles can be formed from triangular numbers.

Thus, the first three triangular numbers 1, 3, 6.

To know more about the triangular numbers, here

https://brainly.com/question/13968949

#SPJ4

Se consideran los vectores u (-3,2) y v (5,1). Calcula gráficamente y utilizando las coordenadas del vector w= 2u – v

Answers

Answer:

hhhhhhhhhhhhhhhh hhhhhhhhhhh

Step-by-step explanation:

hhhhhhhhh hhhhhhhhh hhhhhhh hhhhhh

The numerator of a fraction is 2 less than its denominator. If 3 is subtracted from the numerator and from the
denominator, the new fraction obtained is. Find the fraction.
A set of multimedia equipment costs $1900, By setting up an inequality, find the maximum number of sets of

Answers

The Fraction for the given word problem is x/y = 9/11

What is Fraction?

A fraction, which derives from the Latin word fractus, meaning "broken," is a portion of a whole or, more broadly, any number of equal parts. A fraction, such as one-half, eight-fifths, or three-quarters, indicates the number of parts of a particular size when it is used in everyday speech.

Let the fraction be x/y

The numerator of a fraction is 2 minus its denomination.

⇒ x = y - 2 .....(i)

When 3 is subtracted from numerator and from denomination the new fraction obtained is 3/4

⇒ x - 3/y - 3 = 3/4

Can also be written as

⇒ 4(x + 3) = 3(y - 3)

⇒ 4x - 12 = 3y - 9

⇒ 4x - 3y = -9 + 12

⇒ 4x - 3y = 3 .....(ii)

Substitute the value of (i) in (ii)

⇒ 4x - 3y = 3

⇒ 4(y - 2) - 3y = 3

⇒ 4y - 8 - 3y = 3

⇒ y - 8 = 3

⇒ y = 3 + 8

⇒ y = 11

Putting the value of y in (i).

⇒ x = y - 2

⇒ x = 11 - 2

⇒ x = 9

Hence, Fraction = x/y = 9/11

Learn more about6 fraction

https://brainly.com/question/17220365

#SPJ1

Tyler has a baseball bat that weighs 28 ounces. Find the weight in kilograms and in grams. (Note: 1 kilogram=35 ounces)

Answers

Answer:

1/ 0.8 kilograms

2/ 800 grams

Step-by-step explanation:

We know

1/

Baseball bat = 28 ounces

1 kilogram = 35 ounces

To find weight in kg we take

28 / 35 = 0.8 kg

2/

We know

1 kg = 1000 g

0.8 kg = 800 grams

So, the baseball bat weights 0.8kg or 800 grams

Dariu ha a 40-ounce port drink. He drink 18 ounce. Enter the percentage of ounce Dariu ha left of hi port drink

Answers

The percentage of ounce Dariu has left of his port drink is 55%.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.

It is given that Dariu ha a 40-ounce port drink.

He drank 18-ounce port drink.

First calculate what percentage of port drink Dariu drank.

The equation is -

= (18/40) × 100

= 45%

So, Dariu drank 45% of the port Drink.

Now, subtract the percentage Dariu drank from the 100% (40 Ounce) drink Dariu had -

100 - 45 = 55

Therefore, Dariu has 55% drink left.

To learn more about percentage from the given link

https://brainly.com/question/19247356

#SPJ4

Please its due today

Answers

a) The domain and the range of the function are given as follows:

Domain: [-4,5).Range: [0,9].

b) The zero of the function is given as follows: (3,0).

c) The behaviors are given by these following intervals:

Increasing: (-4,0) U (3,5).Decreasing: (0,3).Constant: DNE.

d) The extremas are given as follows:

Relative minimum: (3,0).Relative maximum: (0,9).

e) The function is neither even nor odd.

What are the features of the function?

The domain of a function is the set that contains all the input values for the function, hence in the graph it is given by the values of x.

The range of a function is the set that contains all the output values for the function, hence in the graph it is given by the values of y.

The zeros are the points of the function at which it either crosses or touches the x-axis.

The function is increasing when the graph is moving up, and decreasing it the graph is moving down.

The extremas are given as follows:

Relative minimum: function changes from decreasing to increasing.Relative maximum: function changes from increasing to decreasing.

The function is classified as even, odd or neither as follows:

Even: f(x) = f(-x) for all values of x.Odd: f(-x) = -f(x) for all values of x.Neither: none of the two above statements are true.

More can be learned about functions at https://brainly.com/question/24808124

#SPJ1

What are the 3 algorithms?

Answers

Sequencing, selection, and iteration are the three fundamental building blocks that make up an algorithm.

What is algorithm?

An algorithm in mathematics is a process, a description of a series of steps that can be used to solve a mathematical computation, but they are now much more prevalent than that. The long division algorithm is perhaps the most well-known application of algorithms in science (and in daily life, for that matter).

Algorithms are all about figuring out the most effective ways to perform the math, despite the fact that the above explanation might sound a little fussy and detailed. Mathematicians are known for being lazy, so they frequently seek out shortcuts, as the anonymous mathematician puts it. For locating these short cuts, algorithms are used.

Learn more about algorithm

https://brainly.com/question/29289479

#SPJ4

A developer wants to develop a 18-acre subdivision. He figures that the streets and common area will take up about 20% of this overall area. If the minimum lot size is to be 10,000 SF, how many lots can the developer have on this property

Answers

Developer has 627264 square feet land available.

What means lot size?

The minimum permissible quantity of an asset that is accepted for purchasing.

How many lots the developer has as per question?

A developer wants to develop 18-acre property = 784080 square feet area

he notices that street and common area will take up about 20% of total area.

hence, the remaining area for developing works = 80%

the amount of land rest for the developer = 784080 ×80 /100

                                                                    = 627264 square feet.

there is a rule that minimum lot size is to be 10000 square feet for developing works,

the above amount 627264 square feet lot can the developer have on this property that is higher than the minimum lot value.

To know more about area measurement unit visit:

https://brainly.com/question/16358605

#SPJ4

Jasmine has $26 to spend on binders and one pack of pens. The pack of pens costs $4. 75. Each binder costs $5. Write an inequality to determine the maximum number of binders she can buy, (Define your variable. )

Answers

Jasmine can buy a average of 4 binders because the cost of the binders, multiplied by the number of binders she wants to buy, plus the cost of the pens, must not exceed her total budget of $26.

Step 1: Define the variable. Let x represent the number of binders Jasmine can buy.

Step 2: Write the inequality. 5x + 4.75 ≤ 26

Step 3: Solve the inequality. 5x ≤ 21.25

Step 4: Isolate the variable. x ≤ 4.25

Step 5: The maximum number of binders Jasmine can buy is 4.

Let x represent the number of binders Jasmine can buy

5x + 4.75 ≤ 26

5x ≤ 21.25

x ≤ 4.25

Jasmine has a total of $26 to spend on binders and one pack of pens. The cost of the pens is $4.75, and each binder costs $5. To determine the maximum number of binders she can buy. The inequality we need to solve is 5x + 4.75 ≤ 26. We can solve this inequality by first multiplying both sides of the equation by 5, which gives us 5x ≤ 21.25. We can then isolate the variable by dividing both sides of the equation by 5, which gives us x ≤ 4.25. This means that the maximum number of binders Jasmine can buy is 4.

Learn more about average here

https://brainly.com/question/24057012

#SPJ4

Please answer this by 11/01/22. Thank you.

Answers

Answer: a) AE || BC     b)AB=BC      c)AE⊥ED &ED⊥CD

Step-by-step explanation:

a) The line segments that have the arrow sign on them mean that they are parallel, so AE || BC ( || = parallel to).

b) When two line segments have a dashed line on it, it shows that they are the same length, so AB is equal to BC.

c) when two segments intersect with a 90° angle, they are perpendicular, so AE⊥ED &ED⊥CD(⊥ = perpendicular to).

PLEASE HELP I WILL GIVE FIVE STARS AND BRAINLIEST Transformation and plot image.

Answers

Answer: You need to drew , this arrow , to each point  K,L,M,N,

Drawing must be parallel to , this arrow, AND , exactly the same length, as the arrow .

step 2.  when you drew it , then at the end are your new points, K",L",M",N".

Ok?

step 3.

Then you just read  the  coordinates.  of new  points .

I would gladly drew it ,  but I do not knew how to put picture  in  this , jet .

Step-by-step explanation:

The library has 1,500 fiction books and 8,500 non-fiction books. What percentage of the books at the library are fiction books?

Answers

15%

If you take fiction plus non fiction it equals 10k books. 1500/10000 is 15%

Why is the 4th interval called perfect?

Answers

The 4th interval is called perfect

The perfect fourth interval consists of two notes with five steps distance.

The 4th interval is called perfect

The perfect fourth interval consists of two notes with five steps distance. For example, C to F note will result in this musical interval. The perfect fourth include one more semi-step compared to the major third  and two semi-steps less compared to the perfect fifth .

The reason for the name perfect goes back to the Medieval. The unison, fourth, fifth and octave were considered most consonant and therefore were given the name perfect. Perfect fourth is “perfect” in the sense that is almost sounds as the unison interval. The perfect fourth interval is abbreviated  (an alternate spelling is augmented third).

To learn more about interval:

https://brainly.com/question/29197921

#SPJ4

which operation should be completed first to find the value of the expreesion below 12 + 30 / (6 -3) + 1

Answers

Subtraction (6-3) in parentheses should be first

i need help with this question

Answers

The required slope of the linear equation is -3 which values shown in the table.

What is the slope of the line?

The slope of a line is defined as the gradient of the line. It is denoted by m

Slope m = (y₂ - y₁)/(x₂ -x₁ )

The table is given in the question as follows:

x          y

-4       -15

-2        9

0         3

2        -3

4         -9

As per the question, we take the given points are (0, 3) and (4, -9).

So we can substitute these values into the formula:

m = (-9 - 3) / (4 - 0)

m = -12 / 4

Apply the division operation, and we get

m = -3

Therefore, the required slope of the linear equation is -3.

Learn more about the Slope of the Line here:

brainly.com/question/14511992

#SPJ1

A quadrilateral with vertices at A(4, -4), B(4, -16), C(12, -16), and D(12,-4) has been dilated with a center at the
origin. The image of D, point D', has coordinates (36, -12). What is the scale factor of the dilation? 1/9. 1/3
3
9

Answers

Answer:

scale factor = 3

Step-by-step explanation:

since the origin is the centre of dilatation then the scale factor is the ratio of corresponding coordinates, image to original.

given D (12, - 4 ) and D' (36, - 12 ) , then

scale factor = [tex]\frac{36}{12}[/tex] = [tex]\frac{-12}{-4}[/tex] = 3

Solve the following equation by first writing the equation in the form a x squared = c: 3 a squared minus 21 = 27 a. a = 4 b. a = plus-or-minus 4 c. a = plus-or-minus 16 d. a = 16 Please select the best answer from the choices provided A B C D

Answers

The best answer from the choices provided is a = plus-or-minus 16 . Option C

What is a quadratic equation?

A quadratic equation can be defined as an equation that can be rearranged in a standard form

Such that;

x represents an unknown value or variableThe variables, a, b, and c represent known numbersThe variable,  a ≠ 0

These quadratic equation are also described as polynomial equation having its highest degree as 2.

From the information given, we have that;

3a² - 21 = 27

collect like terms

3a² = 27 + 21

Add the values

3a² = 48

Divide both sides by 3

a² = 48/3

a² = 16

Hence, the value is a² = 16

Learn more about quadratic equation here:

https://brainly.com/question/1214333

#SPJ1

PLEASE HELP!!! WILL GIVES BRAINIEST!! PLEASE SHOW YOUR WORK!!

Answers

Answer: 3% of 62 = 1.86

Explanation: 3% × y = 1.86 =>

y =

1.86 ÷ 3% =

1.86 ÷ (3 ÷ 100) =

(100 × 1.86) ÷ 3 =

186 ÷ 3 =

62

Please mark me brainiest

Answer:

0.0558

Step-by-step explanation:

3% is out of hundred so we multiply

3%×1.86=0.0558

Checking:

0.0558÷1.86=0.03

0.03=3%

Uri buys two burgers and a soda for $\$2.10$, and Gen buys a burger and two sodas for $\$2.40$. How many cents does a soda cost

Answers

The cost of soda as calculated from the data given is found to be as 0.9 cents.

the price of 1 burger = x

the price of 1 soda =y

Therefore, the equation for Uri and Gen becomes,

2x + y = $2.10

x+ 2y = $2.40

On solving these two equations we will get the value of x and y which represents their cost.

on multiplying equation 2 with 2 , we will get ,

2x + 4y = 4.80

Therefore , on subtracting equation 1 and 2 ,

 2x + y = $2.10

- 2x + 4y = 4.80

=> -3y = - 2.7

=> y = 0.9

Therefore x will be ,

x+ 2y = $2.40

x+ 2(0.9) = $2.40

x + 1.8 = $2.40

x = 2.40 - 1.8

  = 0.60

Therefore, cost of soda is 0.9 cents.

To learn more about equations

brainly.com/question/29657983

#SPJ4

The piggy bank in the video was filled with pennies and

quarters worth a total of $62. 0.

What are three possible combinations of pennies and

quarters that are worth $62. 00?

Enter your combinations in the table.

Number of Pennies

Number of Quarters

I

Answers

The three combinations of pennies and quarters are:

A. 1,560 Pennies and 124 Quarters

B. 2,600 Pennies and 49 Quarters

C. 3,120 Pennies and 24 Quarters

The total value of the pennies and quarters is $62.00. This can be achieved with either 1,560 pennies and 124 quarters (1,560 x 0.01 + 124 x 0.25 = 62.00), 2,600 pennies and 49 quarters (2,600 x 0.01 + 49 x 0.25 = 62.00) or 3,120 pennies and 24 quarters (3,120 x 0.01 + 24 x 0.25 = 62.00).

To find the combinations of pennies and quarters that are worth $62.00, begin by finding the number of pennies that equal $

62.00. 62.00/0.01 = 6,200 pennies.

Next, subtract the value of the pennies from the total to find the value of the quarters.

62.00 - (6,200 x 0.01) = 24.00.

Divide the value of the quarters by 0.25 to find the number of quarters. 24.00/0.25 = 96 quarters.

To arrive at the three combinations

, 1,560 pennies and 124 quarters

(1,560 + 96 = 1,656, 1,656 x 0.01 + 124 x 0.25 = 62.00),

2,600 pennies and 49 quarters

(2,600 + 49 = 2,649, 2,649 x 0.01 + 49 x 0.25 = 62.00)

and

3,120 pennies and 24 quarters

(3,120 + 24 = 3,144, 3,144 x 0.01 + 24 x 0.25 = 62.00).

For more questions like Pennies  click the link below:

https://brainly.com/question/29165346

#SPJ4

RADIO FRIENDS Polly, Autumn, and Terry each have a two-way radio with a two-mile range. Their houses are located as shown, with Autumn and Polly being two miles apart. Which friends can talk with each other on the radio?

Answers

Autumn and Terry can talk because the distance between them is 2 miles

Polly and terry can not talk because the distance between them is 2.27 miles.

Polly and Autumn's distance can talk because the distance between them is 1.56 miles.

What is a triangle?

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

Autumn and Terry distance = 2 mile

Polly and Autumn's distance = x miles

Polly and terry's distance = y miles

Now,

Applying the Sin rule of a triangle.

2 / sin 59° = x / sin 42° = y / sin 79°

2 / 0.86 = x / 0.67 = y / 0.98

Find x.

2 / 0.86 = x / 0.67

x = 1.56

Find y.

2/0.86 = y / 0.98

y = 2.27

Now,

Polly and Autumn's distance is 1.56 miles.

This means they can talk.

Polly and terry's distance is 2.27 miles.

This means they can not talk.

Thus,

Polly and Autumn can talk.

Polly and terry can not talk.

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ1

Suppose that a company wishes to predict sales volume based on the amount of advertising expenditures. The sales manager thinks that sales volume and advertising expenditures are modeled according to the following linear equation. Both sales volume and advertising expenditures are in thousands of dollars.
Estimated Sales Volume=46.41+0.45(Advertising Expenditures) If the company has a target sales volume of $200,000 how much should the sales manager allocate for advertising in the budget? Round your answer to the nearest dollar.

Answers

The sales manager should allocate approximately 341311.111 for advertising in the budget.

What is advertising expenditure?

Generally, Advertising expenditure refers to the amount of money that a company or organization spends on promoting their products or services through various forms of advertising media, such as television, radio, print, and online.

This can include costs for creating and producing advertisements, as well as fees for placing them on different platforms. Advertising expenditure can also be referred to as "advertising budget" or "advertising spend."

To find the advertising expenditure needed to reach a target sales volume of $200,000, we can use the equation provided: Estimated Sales Volume = 46.41 + 0.45(Advertising Expenditures)

We can set the target sales volume as the left-hand side of the equation and solve for the advertising expenditure:

200,000 = 46.41 + 0.45(Advertising Expenditures)

Subtracting 46.41 from both sides:

153,590 = 0.45(Advertising Expenditures)

To find the Advertising Expenditures, divide 153,590 by 0.45:

Advertising Expenditures = 341311.111

Read more about advertising expenditure

https://brainly.com/question/24261436

#SPJ1

What is log and example?

Answers

Logs are a type of mathematical operation used to solve exponential equations.

Logs are written as log boxes, where b is the base. The base is the number that the logarithm is being calculated concerning. The x is the number that the logarithm is calculated. Logarithms allow us to convert multiplication and division problems into addition and subtraction.

For example, log2 (8) can be calculated by taking the logarithm of 2, which is 0.301029996, and then multiplying it by 8, which is 2.408239965. This means that log2 (8) is equal to 2.408239965.

Another example is log10 (100). This can be calculated by taking the logarithm of 10, which is 1 and then multiplying it by 100, which is 100.

This means that log10 (100) is equal to 100. Logs are an important tool in mathematics and are used in a variety of fields, such as chemistry, engineering, and economics.

To know more about Log or Logarithm:

brainly.com/question/1626212

#SPJ4

Geometry Questions....need help pls

Answers

This given figure carries onto themself at 360, 180, and 60 degrees respectively.

What does carrying a figure onto itself mean?

If a rotation between 0° and 360° around the center of a figure in the plane may map the figure onto itself, the figure possesses rotational symmetry. From its starting point, the figure can be rotated and mapped onto itself. The symmetry is of order 4. As a result, the figure displays both rotational and line symmetry.

Given three figures those figures have rotational symmetry from their center point.  The fixed point that the rotation revolves around in a figure or object with rotational symmetry is referred to as the center of rotation.

for figure 1

figure 1 does not have rotational symmetry on any given angles thus, its rotational symmetry would be 1 since it carries onto itself at 360°.

for figure 2

figure 2 has rotational symmetry at 180°. thus, its rotational symmetry would be 2 since it carries onto itself at 180° and 360°.

for figure 3

figure 3 has rotational symmetry at 60, 120, 180, and 240. thus, its rotational symmetry would be 6 since it carries onto itself at 60, 120, 180, 240, and 360°.

therefore, the given figures have 1, 2, and 6 rotational symmetry.

Learn  more about figures here:

https://brainly.com/question/14982752

#SPJ2

What is the y-intercept of the quadratic function f/x )=( x 6 )( x 2?

Answers

The y-intercept of the quadratic function f(x) = (x - 6)(x + 2) is -12.

The y-intercept of a quadratic function is the point at which the graph of the function crosses the y-axis. This means that when x = 0, the value of y is equal to the y-intercept. In the case of the function f(x) = (x - 6)(x + 2), when x = 0, the value of y is equal to -12. This means that the y-intercept of the function is -12. To find the y-intercept, we can also substitute 0 for x in the equation, which would give us 0 = (0 - 6)(0 + 2), which simplifies to 0 = -12, and thus the y-intercept is -12.

Learn more about Quadratic Function here:

https://brainly.com/question/25841119

#SPJ4

Andy and Trevor share 40 sweets in a ratio 11: 9
How many more sweets does Andy receive than Trevor does?

Answers

Answer:

Step-by-step explanation:

no

Answer:

22:18

Step-by-step explanation:

In this case, firstly you have to add 11 and 9 together, which makes 20.

Then, 40 ( number of sweets ), divided by 20 gives us 2.

This means that every piece, or block, of our ratio will be 2.

Therefore, the last step is multiplying 11x2 and 9x2.

So, Andy has 22 sweets an Trevor has 18.

Which is 536,900 in scientific notation

Answers

Answer:

5.369 x 105

Step-by-step explanation:

Answer:

5.369 x 105

Cause in scientific notation, the decimal point is always after the first number from the left.

Shelley drew a scale drawing of a neighborhood park. The volleyball court, which is 8 meters wide in real life, is 4 millimeters wide in the drawing. What is the scale factor of the drawing?

Simplify your answer and write it as a fraction.
I need IXL answer's PLEASE

Answers

The scale factor of the drawing of the neighborhood park would be = 2000.

What is a scale factor?

The scale factor is defined as the ratio between the scale of the original object and the new object, which represents it but in a different size (larger or smaller).

The width of the neighborhood park. in real life = 8 meters

To convert 8 meters to millimetres is to multiply by 1000

= 8 × 1000 = 8000 mm

The scale factor = 4 × X = 8000

make X the subject of formula;

X = 8000/4

X = 2000.

Learn more about scale factor here:

https://brainly.com/question/28339205

#SPJ1

Other Questions
Math I need help Im very confused and I dont understand Im sorry its hard to see the photo I need answers. For each of the following , findthe coordinates of a or b and : the x-intercept, the coordinates of C: the y-intercept the axis of symmetry,the coordinates of the vertex,The maximum or minimum value, What are the 4 simple rules for budgeting? it been 3 months since we last conducted the research? A client is treated for increased intracranial pressure (ICP). It is important for the client to avoid hypothermia because A sphere is inscribed in a cone with height 4 and base radius 3. What is the ratio of the volume of the sphere to the volume of the cone Read the passage. There are several questions about this passage.whether formed by water run-off, deer, or wild turkey, every path seemed tobe a desire path.2But when we were some hundred feet below the ridge line, the signalpicked up, and its steady, loud chirping took us to the old black locust tree,seventy or maybe seventy-five feet tall, with cracks and fissures in its deeplyfurrowed bark that made it an accommodating roost. A pamphlet from the USFish and Wildlife Division of the Department of Environmental Conservationdescribes the Indiana bat as having fur that is "dull grayish chestnut ratherthan bronze, with the basal portion of the hairs of the back dull lead colored.This bat's underparts are pinkish to cinnamon, and its hind feet small anddelicate." I saw nothing like this, but when we listened very carefully, we couldhear their hum of gentle chattering. Bats use sound to situate themselves;their capacity for echolocation is what guldes them, what elucidates theirsense of space and substance, what locates their prey. But the sound, a seriesof tiny clicks ten or twenty, forty or even two hundred times a second, is at afrequency beyond most human hearing; it is exactly that high frequency withits short wavelengths that produces the detailed echoes the bats rely on tolearn the shape of their universe. We live in an acoustical empire we will neverknow, our threshold of hearing situated somewhere between the low,Infrasonic rumbling of elephants and the high-pitched ultrasonic rasping oftenrec shrews that rub their quills together to communicate. I knew that thesubtle whispering I could make out was but a fraction of the sound sensationthe bats were creating and, listening to the soft murmuring, felt I was standingat the gate to a remote kingdom of sound that could only be imagined.In paragraph 2, how are elephants and tenrec shrewsrelated to the human "threshold of hearing"?1. These animals illustrate the lowest and highestsounds that most humans can hear.2. These animals make some sounds that areoutside the range of human hearing.3. These animals can hear sounds that mosthumans and bats are also likely to hear.4. These animals are like humans in their ability tohear the range of sounds made by bats. Ser y estar (Review) Name: Conjugate the verbs ser y estar. Ser Yo ____________________ Nosotros ___________________ T ____________________ Vosotros ___________________ l / Ella ____________________ Ellos ___________________ Ud. ____________________ Ustedes ___________________ Estar Yo ____________________ Nosotros ___________________ T ____________________ Vosotros ___________________ l / Ella ____________________ Ellos ___________________ Ud. ____________________ Ustedes ___________________ II. Do you use SER or ESTAR in the following situations?1. to talk about location of a person or a thing: ______________________ Mis libros __________________ al lado de mi silla. 2. to talk about origin: _______________ Mi abuela _______________ de Espaa. 3. to express possession with de: _________________ De quin _____________ este dinero? 4. with adjectives, to express the norm or inherent qualities: _________________ Los padres de Elena ________________ altos. 5. with adjectives, to express a change from the norm or to express conditions: _________________ T __________________ muy guapo esta noche. 6. to identify people or things: _________________ Nosotros _________________ estudiantes. 7. to express time: _________________ ____________ las dos y media. III. Complete with Ser or Estar in the correct conjugation.Las fiestas Las fiestas ________________________ populares entre los jvenes de todas partes del mundo. Ofrecen una buena oportunidad para __________________________ con los amigos y conocer a nuevas personas. Imagine que Ud. _________________________ en una fiesta con unos amigos hispanos en este momento: todos __________________________ alegres, comiendo, hablando y bailando... Y ___________________________ las dos de la maana! La pandilla Ahora en el mundo hispnico no ____________________ necesario tener chaperona. Muchas de las actividades sociales se dan en grupos. Si Ud. __________________________ miembro de una pandilla, sus amigos __________________________ el centro de su vida social y Ud. y su novio o novia salen frecuentemente con otras parejas o personas del grupo. IV. Minidilogo. Complete the conversation with the correct conjugation of Ser y Estar. 1. De dnde ______________________ t? _________________ de Buenos Aires. 2. De quin _____________________ estas cosas? Creo que _____________________ de Ana. 3. Estos boletos _______________ para Uds. Vamos a entrar ahora, eh? Las puertas del cine ya ____________________ abiertas. Buena idea. 4. Pablo, ya _______________ la una y media. Tenemos que ________________ en el aeropuerto a las dos y _________________ difcil encontrar un taxi a estas horas. De acuerdo. Vamos. 5. Juan, tu cuarto ___________________ muy desordenado. S, mam. (Yo) ______________________ de acuerdo, pero la puerta __________________ cerrada! 6. La novia de Tito _________________ cariosa y alegre. Y l? l _________________ muy formal. V. Complete the sentences with Ser y Estar.1. El profesor no ________ en la escuela.2. El libro _________ encima de la mesa.3. El seor Gmez _________ de Blgica.4. Caracas _________ en Venezuela.5. Mi prima _________trabajando en la oficina.6. Mis hermanos _________ estudiando espaol.7. ________ la una y treinta8. Dnde ________ los chicos?9. Mi padre ________ enfermo.10. Catalina y Lina ________ hermanas.11. Victoria y yo ________ cocinando pollo12. Nosotros _________ tristes.13. Dnde _______ el museo de arte?14. El 30 de abril _______ el cumpleaos de la seorita.15. La bandera _______ delante de la ventana.16. Gabriel y Enrique _________ inteligentes.17. Paola _______ cansada.18. _________ las dos y quince.19. La seora Rodrguez ________ delgada.20. Carmen _______ en la iglesia.21. El Seor Salazar ________ un mdico.22. Mara _______ alta, no ______ baja For each of the following chemical equations, write all possible mole ratios. a. 2HgO(s) 2Hg(l ) + O2(g) b. 4NH3(g) + 6NO(g) 5N2(g) + 6H2O(l ) c. 2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g)What is c. 2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g) Dominique decorates a round cake with fruits. The cake has a diameter of 16 inches. She frosts just the top if the cale. How many square inches of the cake are covered with icing?Use 3. 14 for A food service employee with an open cut or wound on their hand may be permitted to prepare food if the: I need help with this, please Select the correct answer. the book the lord of the rings by j. r. r. tolkien, in which the main character must go on a journey to destroy a magic ring, is an example of which plot archetype? a. comedy b. rebirth c. tragedy d. quest In a math question, Magda correctly answered a question that asked for a typical measure of orange juice in a full family-size jug. Which was her answer After completing Client Rs tax return for the prior period, a dispute over fees arose between Practitioner and R. R demanded the return of her related documentation and Practitioner obliged. However, Practitioner did not return the documents that she prepared for the engagement. The withheld documents are not required for R to comply with her federal tax obligations. True or false? Rome is centrally located along which major body of water?Mediterranean SeaAegean SeaAdriatic SeaBlack Sea Who was excluded from the Constitution? Complete the table with values for x or y that make this equation true : 3x+y=15. A dieter whose weight falls below his or her set point is likely to experience a(n)A. decrease in hunger and an increase in metabolic rate.B. increase in hunger and an increase in metabolic rate.C. decrease in hunger and a decrease in metabolic rate.D. increase in hunger and a decrease in metabolic rate. Use the graph of the function to find the domain and range of f (Enter your answers using interval notation) I GIVE THANKS AND MARK BRAINLIESTWhat is the correct answer? Please help.