Alan is designing a costume for a
play. The graph shows the time it
takes him to sew the fabric. What
length of fabric can Alan sew in
1.5 minutes?
120
100
€80
Length (ft)
60
40
20
O
y
1
2 3 4
Time (min)

The area of the sector is 40 cm².

Let us consider a circle of radius 2 cm. If an arc of this circle subtends an angle of 20 radian to the centre, then the length of the arc and area of the sector such formed are as follows:Length of the arcThe arc length of a circle is given by the formula L = rθ where r is the radius of the circle and θ is the angle subtended by the arc of the circle in radians.L = rθWhere L = Length of the arc, r = radius of the circle and θ = angle subtended by the arc of the circle in radians.Substituting the values r = 2 cm and θ = 20 radians, we have:L = 2 x 20 cmL = 40 cmTherefore, the length of the arc is 40 cm.Area of the sectorThe area of a sector is given by the formula A = (1/2) r²θ where r is the radius of the circle and θ is the angle subtended by the arc of the circle in radians.A = (1/2) r²θWhere A = area of the sector, r = radius of the circle and θ = angle subtended by the arc of the circle in radians.Substituting the values r = 2 cm and θ = 20 radians, we have:A = (1/2) x 2² x 20A = (1/2) x 4 x 20A = 40 cm²Therefore, the area of the sector is 40 cm².

Learn more about Area

brainly.com/question/27683633

#SPJ11

Probabilities (at least 13 graduates) = 0.29858

The variable is binomial, which means that it can only have two possible outcomes (in this case, either a student will graduate or they will drop out). The probability of at least 13 students out of 15 graduating is calculated by adding the probability of exactly 13 students graduating and the probability of exactly 14 students graduating:

P(at least 13 graduate) = P(exactly 13 graduate) + P(exactly 14 graduate)

To calculate the probability of exactly 13 students graduating, use the binomial formula:
P(X = 13) = (15 choose 13) * (0.105)13 * (0.895)2

The calculation for P(X = 13) is: (15 choose 13) * (0.105)13 * (0.895)2 = (15!/13!(15-13)!) * (0.105)13 * (0.895)2 = (15 * 14 / 1 * 1) * (0.00155) * (0.80505) = 0.16437

Similarly, to calculate the probability of exactly 14 students graduating, use the binomial formula:
P(X = 14) = (15 choose 14) * (0.105)14 * (0.895)1

The calculation for P(X = 14) is: (15 choose 14) * (0.105)14 * (0.895)1 = (15!/14!(15-14)!) * (0.105)14 * (0.895)1 = (15 / 1) * (0.01462) * (0.895) = 0.13421

Finally, add the probabilities together to find the probability of at least 13 students graduating.
P(at least 13 graduates) = P(exactly 13 graduate) + P(exactly 14 graduate)
P(at least 13 graduates) 0.16437 + 0.13421 = 0.29858, rounded to three decimal places.

To learn more about "Probability": brainly.com/question/29350029

#SPJ11

When both groups are shifted to a situation in which they earn an alternative reward after being trained to navigate a runway for food, the group that received three food pellets will continue to perform the task at a high level while the group that received one food pellet will experience difficulty.

It is known that rats have a natural preference for higher rewards. As a result, the group that received three pellets will be more motivated to complete the task since they have already tasted a higher reward. Therefore, they will continue to perform at a high level in the new environment.

On the other hand, the group that received only one pellet may find it challenging to adapt to the new situation since they are now receiving a lower reward. As a result, they may struggle to complete the task, and their performance may decrease.

In conclusion, the group that received three pellets will perform better than the group that received one pellet when both groups are shifted to a situation in which they earn an alternative reward. This is because the rats have a natural preference for higher rewards.

To learn more about alternative award :

https://brainly.com/question/31115345

#SPJ11

Answer:

If the GM between √2 and 2√2 is a find the value of a.​

Step-by-step explanation:

To find the geometric mean between two numbers, we simply take the square root of their product.

In this case, we want to find the geometric mean between √2 and 2√2.

Their product is:

√2 * 2√2 = 2√4 = 2*2 = 4

So, the geometric mean between √2 and 2√2 is the square root of 4, which is:

√4 = 2

Therefore, the value of a is 2.

Normal quantile plot is a graph of points (x,y) where each x-value is from the original set of sample data, and each y-value is the corresponding Z-score that is a quantile value expected from the standard normal distribution.

What is a Normal Quantile Plot?

A normal quantile plot is a graphical tool used to determine whether a data set is normally distributed or not.

It plots sample data versus a theoretical normal distribution.

In general, the points on the plot should form a straight line if the data is normally distributed. If the data is not normally distributed, the points on the plot will not form a straight line.

A normal quantile plot can be used to evaluate the following:

The normal quantile plot of the residuals is the most important diagnostic tool for examining whether the assumptions of a linear regression model have been met.

Learn more about normal quantile plot here: https://brainly.com/question/31040800

#SPJ11

The equation of Line 1 in the form y=-12x+28

A measurable path between two places is referred to as a line segment. Line segments may make up the sides of any polygon since they have a set length.

Coordinates of Line 2 M(4,5) and N(6,-19)

Slope of Line 2 is =(-19-5)/(6-4)

=-24/2=-12

Slope of line 1 and line 2 are same

Cordinate of Line 1 is D(2,4)

D(2,4) must pass through line 1, so it must satisfy the equation

y=mx+b

4=2(-12)+b

4+24=b

b=28

the equation of Line 1 in the form y=-12x+28

To know more about slope, visit:

https://brainly.com/question/3605446

#SPJ1

The value of the r in following triangle is 29.

[tex]65° + (4r - 1) ^ 0 = 180°[/tex]

Angles on a straight line ddd up to 180 deg

therefore

65°+ 4r - 1 = 180°

4r - 1 = 180° - 65°

4r - 1 = 115°

4r = 115 + 1

4r = 116

r = 116/4

r = 29.

A triangle is a three-sided polygon with three angles. It is a simple closed shape and one of the fundamental geometric shapes. Triangles are classified based on the length of their sides and the angle measurement.

To know more about polygon visit:-

https://brainly.com/question/24464711

#SPJ1

Answer: 0000

Step-by-step explanation:

The required equation of straight line is y = 0.03x + 20.

What is an equation?

A mathematical equation states that two quantities or values are identical. Equations are used when more than one factor has to be examined in order to fully understand or explain a situation.

The general form of an equation is y = mx + b, where m is the slope of equation and b is a constant.

From the given graph we get 2 points.

i.e., (0, 20) and (2000, 80)

Slope of the line is

[tex]m=\frac{80-20}{2000-0}\\\ \ = \frac{60}{2000}\\ = \frac{6}{200} \\= \frac{3}{100}[/tex]

Then the equation will be

[tex]y-20=\frac{3}{100}(x-0)\\\Rightarrow y-20=0.03x\\\Rightarrow y-0.03x-20=0\\\Rightarrow y = 0.03x+20[/tex]

Therefore, the required equation is y = 0.03x + 20, calculating with the help of given graph.

Learn more about equation from the given link

brainly.com/question/10413253

#SPJ1

They can present in 96 different orders. Given, there are five student groups to present in class and one group cannot go first because they need additional set-up time.

Permutation is to select an object then arrange it and it cares about the orders while Combination is about only selecting an object without caring the orders.

We have 5 positions to fill here.

First position: 4 ways (one of the rest 4 groups will present first)

Second position: 4 ways (one of the rest 3 groups and the group which could not present first, will present second)

Third position: 3 ways (one of the rest 3 groups will present third)

Fourth position: 2 ways (one of the rest 2 groups will present fourth)

Fifth position: 1 way (rest group will present last)

Total ways in which they can present = 4*4*3*2*1 = 96

Hence, the answer is 96.

Learn more about permutation at:

https://brainly.com/question/28065038

#SPJ4

Answer: y = 4, hope you feel better

Step-by-step explanation:

Answer: Let's denote the number of additional houses sold after the first one as "x".

Since the commission for the first house sold is GHc3750, the commission for selling x additional houses is GHc500x.

Therefore, the total commission earned by selling x additional houses is:

GHc3750 + GHc500x

We want to find the value of x that makes the total commission equal to GHc6500. Setting up an equation and solving for x, we get:

GHc3750 + GHc500x = GHc6500

GHc500x = GHc2750

x = 5.5

Since we can't sell half of a house, we round up to the nearest whole number. Therefore, the estate dealer must sell a total of 6 houses (including the first one) to reach a total commission of GHc6500.

Step-by-step explanation:

the best rule to describe this rotation is:

(x, y) → (-y, x)

Why it is?

The given rotation is a 270 degree clockwise rotation about the origin. This means that each point in Triangle ABC is rotated 270 degrees in a clockwise direction around the origin to produce the corresponding point in Triangle A'B'C'.

One possible rule to describe this rotation is:

(x, y) → (-y, x)

This rule represents a 90 degree clockwise rotation about the origin, which can be applied three times to achieve a 270 degree clockwise rotation.

So, if we apply this rule to each vertex of Triangle ABC, we get the corresponding vertices of Triangle A'B'C':

A = (a, b) → A' = (-b, a)

B = (c, d) → B' = (-d, c)

C = (e, f) → C' = (-f, e)

Therefore, the best rule to describe this rotation is:

(x, y) → (-y, x)

To know more about Triangle related question visit:

https://brainly.com/question/2773823

#SPJ1

Answer: Do not agree.

Step-by-step explanation:

To determine if we agree with Marcus, we need to verify if the percentages he used on rides, video games, and batting cage add up to 100%.

Marcus used 25% of the tickets on rides and 1/2 on video games. So, the total percentage of tickets he used is:

25% + 1/2 × 100% = 25% + 50% = 75%

This means that Marcus should have used 25% of the tickets in the batting cage. If he said he used 23% of the tickets in the batting cage, then we do not agree with him.

The answer is the lower bound theorem identifies -2 as a lower bound for the real zeros of f(x). The upper bound theorem does not specify any upper bound for the real zeros of (x)

The Lower bound theorem states that "If the terms of a polynomial are arranged in descending order of their degrees, then the absolute value of the quotient of the constant term and the coefficient of the term of the highest degree gives a lower bound for the absolute value of its zeros." Let's examine whether the lower bound theorem identifies -2 as a lower bound for the real zeros of f(x) and whether 3 is an upper bound for the real zeros of (x).

As f(x) = 56 = x + 17x² + 11x + 23Since f(x) is not arranged in descending order of their degrees, we have to rearrange it as follows. 17x² + 11x + x + 23 + 56 = 17x² + 12x + 79 on rearranging the equation we have: 17x² + 12x + 79 = 0Hence the constant term is 79 and the coefficient of the term of the highest degree is 17. Thus, using the lower bound theorem, we can evaluate that a lower bound for the absolute value of the zeros of the polynomial is 79/17 ≈ 4.65 Since -2 is less than the calculated lower bound of 4.65, it is indeed a lower bound for the real zeros of f(x). Now, for (x), the constant term is 0, and the coefficient of the term of the highest degree is 1. Thus, using the upper bound theorem, we can evaluate that an upper bound for the absolute value of the zeros of the polynomial is 1/0, which is equal to infinity. Since infinity is not a number, 3 cannot be an upper bound for the real zeros of (x).

To learn more about "lower bound theorem": brainly.com/question/29059985

#SPJ11  

The value of the given expression is x²a/28.

Mathematical statements are called expressions if they have at least two words that are related by an operator and contain either numbers, variables, or both. A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation. An absolute numerical number is referred to as a constant.

Variable: A variable is a marker with no fixed value.

Term: A term might be a single constant, a single variable, or a mix of a variable and a constant paired with multiplication or division.

The given expression is:

4x² + 2x³/7a³ ÷ 16 + 8x/a⁴

The expression can be written using multiplication as follows:

4x² + 2x³/7a³ × a⁴/16 + 8x

Take the common terms out:

2x²(2+ x)/7a³ × a⁴/8(2 + x)

Cancel the like terms:

x²a/28

Hence, the value of the given expression is x²a/28.

Learn more about expressions here:

https://brainly.com/question/13947055

#SPJ1

Accοrding tο the fοrmula fοr the quadratic equatiοn, the maximum height is 98 ft.

A quadratic equatiοn is a secοnd-degree pοlynοmial equatiοn οf the fοrm:

[tex]ax^2 + bx + c = 0[/tex]

where a, b, and c are cοnstants, and x is the variable. The term "quadratic" cοmes frοm the Latin wοrd "quadratus," meaning square, because the variable is squared in this type οf equatiοn.

Quadratic equatiοns can have οne, twο, οr zerο real sοlutiοns, depending οn the values οf the cοnstants a, b, and c. The sοlutiοns can be fοund using the quadratic fοrmula:

[tex]x = (-b\± \sqrt{(b^2 - 4ac)}) / 2a[/tex] οr by factοring the quadratic expressiοn intο twο linear factοrs.

The quadratic functiοn tο mοdel the vertical mοtiοn is:

[tex]h(t) = -16t^2 + v0t + h0[/tex]

where:

h(t) is the height at time t

t is the time in secοnds

v0 is the initial vertical velοcity in ft/s

h0 is the initial height in ft

Given v0 = 32 ft/s and h0 = 82 ft, the functiοn becοmes:

[tex]h(t) = -16t^2 + 32t + 82[/tex]

Tο find the maximum height, we can use the vertex fοrm οf a quadratic equatiοn:

[tex]h(t) = a(t - t0)^2 + h0[/tex]

where:

a is the cοefficient οf the quadratic term

t0 is the time at which the maximum height is achieved

h0 is the initial height

Cοmparing the twο fοrms, we see that a = -16 and t0 = -b/2a, where b is the cοefficient οf the linear term. In this case, b = 32, sο:

t0 = -32 / (2(-16)) = 1

Therefοre, the maximum height is achieved at t = 1 secοnd. Substituting intο the οriginal equatiοn, we get:

[tex]h(1) = -16(1)^2 + 32(1) + 82 = 98 ft[/tex]

Sο the maximum height is 98 ft.

To know more about quadratic equations visit:

brainly.com/question/30098550

#SPJ1

Answer:

Yes, we can use the given information to prove that $\triangle ABC\cong\triangle DEF$ by the Angle-Side-Angle (ASA) congruence criterion.

We are given that $\angle A\cong\angle D$ and $\angle C\cong\angle F$, which satisfies the Angle-Angle (AA) criterion. Furthermore, we are given that $\overline{AC}\cong\overline{DF}$, which satisfies the Side-Side-Side (SSS) criterion. Therefore, by combining the AA and SSS criteria, we can conclude that $\triangle ABC\cong\triangle DEF$ by the ASA criterion.

In summary, the given information satisfies the necessary conditions for the ASA congruence criterion, and therefore we can prove that $\triangle ABC\cong\triangle DEF$.

Answer:

the numbers are

[tex] \sqrt{10} + 5 \\ - \sqrt{10} + 5[/tex]

Step-by-step explanation:

then there difference is

square root of 10 + 5 -(- square root of 10 +5)

=

[tex]2 \sqrt{10} [/tex]

and the cube of there sum is 15^3 = 15* 15* 15

= 3375

The value of x is equal to; A. 5.

In Mathematics, the basic proportionality theorem states that when any of the two (2) sides of a triangle is intersected by a straight line which is parallel to the third (3rd) side of the triangle, then, the two (2) sides that are intersected would be divided proportionally and in the same ratio.

By applying the basic proportionality theorem to the given triangle, we have the following:

x/(x + 5) = (x - 2)/(x + 1)

By cross-multiplying, we have the following:

x(x + 1) = (x - 2)(x + 5)

x² + x = x² + 5x - 2x - 10

By rearranging and collecting like-terms, the value of x is given by:

2x - 10 = 0

2x = 10

x = 10/2

x = 5.

Read more on basic proportionality theorem here: brainly.com/question/3213812

#SPJ1

The number of students who did not enroll in the college given that only 3/5th of the total students accepted the admission is equal to 80 students.

Let us consider that the total number of students who enrolled for the process is equal to x. Since it is given that three-fifth of the total students who enrolled positively are equal to 120, this means that 3/5*x = 120.

Thus value of x can be calculated by cross multiplication as follows:

3/5*x = 120

x = 120 * 5/3 = 200

Now, since two third of the students didn't respond/ enroll, then this number can be calculated as the difference between the total numbers who joined and the number of students who accepted the enrollment process.

Number of students who accepted but did not enroll = 200 - 120 = 80

Learn more about cross multiplication at:

brainly.com/question/28839233

#SPJ4

Florian has to pay $2,013.3, then he own on his car for 3 months

"A method to find a single unit value from a multiple unit value and to find a multiple unit value from a single unit value."

We always count the unit or amount value first and then calculate the more or less amount value. For this reason, this procedure is called a unified procedure.

Many set values ​​are found by multiplying the set value by the number of sets.

A set value is obtained by dividing many set values ​​by the number of sets.

According to our question-

6040 is the total amount

he has to repay in 3 months

dividing the total amount/3

6040/3

$2,013.3

learn more about unitary method click here:

https://brainly.com/question/24587372

#SPJ1

Answer:

x = 4

Step-by-step explanation:

6x + 21  =  5x + 25

Then, subtract 5x from both sides:

x + 21  = 25

Then, subtract 21 from both sides.

x = 4

Therefore, x is equal to 4 degrees

The relationship in the table is a function because each input (x) has exactly one output (y). The equation for the relationship is y = 4 - x. The points (1, 3), (2, 2), and (3, 1) would all fall on this line.

In mathematics, an equation is a statement that shows the equality between two expressions, usually with one or more variables. An equation is typically represented using an equals sign (=) between the two expressions.

For example, the equation 2x + 5 = 11 shows that the expression 2x + 5 is equal to 11. This equation has one variable, x, which can be solved to find its value. In this case, we can subtract 5 from both sides of the equation to get 2x = 6, and then divide both sides by 2 to get x = 3.

The relationship in the table is a function because each input (x) has exactly one output (y).

Using words, the relationship could be described as "y is equal to 4 minus the value of x."

The equation for the relationship is y = 4 - x.

The graph of the relationship would be a straight line that starts at the point (0, 4) and slopes downward to the right. The points (1, 3), (2, 2), and (3, 1) would all fall on this line.

To know more about graph visit:

https://brainly.com/question/7591316

#SPJ1

the exponent of the product of 8.9 x 10¹² and 4.7 x 10⁻² in scientific notation is 11.

Exponential refers to a mathematical function or relationship in which a variable (such as x) is raised to a constant power (such as 2, 3, or e) to produce a result. The term "exponential" can also be used more broadly to describe any situation in which something grows or changes at an increasingly rapid rate over time, often with a compounding effect.

First, we multiply the two numbers:

(8.9 x 10¹²) x (4.7 x 10⁻²) = 41.83 x 10¹⁰

41.83 x 10¹⁰ = 4.183 x 10¹¹

Therefore, the exponent of the product of 8.9 x 10¹²and 4.7 x 10⁻² in scientific notation is 11.

To Know more about variables, visit:

https://brainly.com/question/17344045

#SPJ1

Answer:

i hope it helps, just keep it up your work. good luck