help me pls kinda stuck lol

The rate of increase in the circumference of the circle at the instant when the radius of the circle is 3 meters is 3 phi m/s

From the question, we have the following information :

1. Constant rate of increasing radius with respect of time (t)

  = [tex]\frac{dR}{dt}[/tex] = 0.5 m / s

2. Radius of circle is 3 meters ( 3m )

To find constant rate of increasing circumference, we have to know formula of circumference.  

We know that circumference = 2 π R

Constant rate of increasing circumference with respect of time (t) can be formulated from contant rate of increasing radius multiply with formula to find circumference

[tex]\frac{dC}{dt}[/tex] = 2πR [tex]\frac{dR}{dt}[/tex]

[tex]\frac{dC}{dt}[/tex] = 2πR ( 0.5 )

    = πR

From above equation, we know that the rate of increasing circumference is πR

When R = 3 m, we just simply subtitute πR with R=3

The constant rate will be :

Rate of increasing circumference = πR m/s

                                                        = π (3) m/s

                                                        = 3π m/s

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Answer:

$91.80 selling price

Step-by-step explanation:

A store pays $68 for a portable DVD player. the markup is 35% what is the selling price?

35% = 0.35

The multiplier for  markup of 35% = 1 + 0.35 = 1.35

68 * 1.35 = $91.80 selling price

The height of the tree is 17.32 feet.

Height is the measurement of a person's or object's vertical distance from the ground. It is usually expressed in units of meters or feet. Height is an important factor in determining physical characteristics, such as BMI, or Body Mass Index. Height can also be used to estimate the age of a person, and to measure the effects of a growth-promoting treatment. Height is also used in many sports, as it is often an advantage for athletes.

Using the tangent formula, the height of the tree is approximately 17.32 feet. To calculate this, take the tangent of 70 degrees (which is 1.19175) and multiply it by the 10 feet of distance.

The result is 11.9175 feet, which when rounded to the nearest hundredth is 17.32 feet.

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Three types of triangles according to scalene, isosceles and equilateral triangle.

What is meant by scalene?

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The true statement regarding the number line and the absolute value is given as follows:

The student is 1.25 ft above sea level, and the absolute value is 1.25 ft.

The number line gives the heights relative to the sea level, and thus their signal are interpreted as follows:

The absolute value of a number represents the distance that the number is from the origin. In the context of this problem, it will give the distance of the measure from the sea level of 0 ft.

The height is given as follows:

1.25 ft.

Which is a positive measure, hence the correct option is given by the third option.

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We can form a triangle with sides 6cm, 7cm, and 2cm.

Now, According to the question:

We know that:

What is triangle inequality rule?

The triangle inequality theorem states that for any given triangle, the sum of the two sides is always greater than the  third side. The Triangle is a polygon with three line segments as its boundaries.

Suppose A, B and C are three sides of a triangle, then by using triangle inequality rule, A + B > C then A, B and C make a triangle.

We have the sides:

6cm, 7cm, 2cm

Here,

6 + 7 > 2

Hence, we can form a triangle with sides 6cm, 7cm, and 2cm.

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Check to see if there is a constant rate of change to determine if a table of values represents a linear function. You're looking at a linear function if there is! You can learn how to determine whether a table of values represents a linear function in this tutorial.

If an equation is written in the form axe + by + c=0, where a, b, and c are real numbers and the coefficients of x and y, i.e., a and b, respectively, are not equal to zero, then it is said to be a linear equation in two variables. Examples of two-variable linear equations are 10x+4y = 3 and -x+5y = 2.

Identities and conditional equations are the two types of equations.

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Answer: i believe is c or d i not 100% sure

If A alone can do a piece of work in 6 days and B alone in 8 days, then A and B undertook to do it for $3200 and complete the work in 3 days with the help of C, then C would be paid 400 dollars.

Therefore the answer is $400.

This is a work and time problem that can be solved using the concept of rate of work. Let's call the amount to be paid to C as "x".

A can do 1 piece of work in 6 days. Therefore, his rate of work is 1/6.

B can do 1 piece of work in 8 days. Therefore, his rate of work is 1/8.

Amount of work A and B can do in 3 days is

= 3×(1/6) + 3×(1/8)

= 3×(1/6)×(4/4) + 3×(1/8)×(3/3)

= 12/24 + 9/24

= 21/24

= 7/8

So amount of work C doing is

= 1 - 7/8

= 1/8

As C do 1/8 amount of work, the amount C would receive is

= 3200 × (1/8)

= 400

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Answer:

1/2

Step-by-step explanation:

I think it is 1/2 Sorry If i am Wrong

Amount of discount allowed = 640 Rs.

VAT meaning value added tax that is attached to an item of product while bought by the buyer and also in each stage of production, distribution level. It is almost similar to a sales tax that is paid within the item price.

given, discount allowed = 20% on the market price.

VAT = 10% on the market price.

Buyer paid as VAT = 320 Rs

Assume, market price of radio = X Rs

now amount of discount = 20/100× X = 0.2X

amount of VAT = 10/100×X = 0.1X

it is said that VAT paid by buyer = 320 Rs

now 320 = 0.1X

X = 320 / 0.1 = 3200 Rs

market price of radio = 3200 Rs

amount of discount = 20/100× 3200 = 640 Rs

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According to the line of best fit, 79 consumers are predicted to use their card to pay during a day when 90 customers pay in cash. The correct answer is C.

The answer is 79. This is because the equation of the line of best fit is:

Which is a linear equation that represents the relationship between the number of customers who pay by cash (x) and the number of customers who pay by card (y).

To use this equation to predict the number of customers who pay by card on a day when 90 customers pay by cash, we can substitute x = 90 into the equation:

79.28 ≈ 79, hence the correct answer is C.

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The given expression [tex]\sqrt{3}x^{2} -2x[/tex] is a polynomial as the power of x are 2 and 1 which are whole numbers .

What are Polynomials ?

The Polynomials are defined as an expression that are composed of variables, constants and exponents, which are combined using mathematical operators .
For Example : [tex]x^{2} +4x[/tex] .

The Expression can be called as a polynomial if the power of variable present in the expression is a whole number .

The expression is given as : [tex]\sqrt{3}x^{2} -2x[/tex] ,

we can see that , in the first term the power of x is 2 , which is a whole number , and

in the second term the power of x is 1 , which is also a whole number .

Therefore , the expression [tex]\sqrt{3}x^{2} -2x[/tex] is a polynomial .

The given question is incomplete , the complete question is

Is [tex]\sqrt{3}x^{2} -2x[/tex] a polynomial ?

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One Kung Pao chicken contains 1620 calories. One Big Mac contains 500 calories.

What is an equation?

A mathematical statement made up of two expressions joined by an equal sign is known as an equation. 3x - 5 = 16 is an example of an equation. We get the value of the variable x as x = 7 after solving this equation.

Assume that one Kung Pao chicken content x calories and one Big Mac content y calories.

Given that one Kung Pao chicken and two Big Macs provide 2620 calories.

Two Kung Pao chickens and one Big Mac provide 3740 calories.

Now using the variable finding calories:

One Kung Pao chicken and two Big Macs provide x + 2y calories.

Two Kung Pao chickens and one Big Mac provide 2x + y calories.

The system of equations is:

x + 2y = 2620  ......(i)

2x + y = 3740  .....(ii)

Using the elimination method to solve the given equations.

Multiply equation (i) by 2 and subtract it from equation (ii)

2x + y = 3740

2x + 4y = 5240

(-)  (-)      (-)

_____________

      -3y = -1500

Divide both sides by -3:

y = 500.

Putting y = 500 in equation (i)

x + 2(500) = 2620

x + 1000 = 2620

x = 1620

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16 is a scale factor of 3 4

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Answer:

its either 63 or 64, im not really sure

There were 24 photos of Simon's motorbike in the album originally.

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

Let x be the number of photos of Simon's motorbike in the album originally.

We know that the number of photos of his car became 12, so the number of photos of his car originally was 8.

We also know that the ratio of the number of photos of his car to his motorbike became 3:5.

So the number of photos of his car and his motorbike originally was x-4.

We can set up the following equation:

12/(x-4) = 3:5

We can cross-multiply and simplify to get:

3x - 12 = 60

3x = 60 + 12

3x = 72

x = 72/3

x = 24

Hence, originally there were 24 photos.

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The length of each segment is: DF=3, FR= 2 2/3, DE=3, GH=4 1/2, EH= 4 5/6.

Length of each segment

16. Length of segment DF

DF=-1-(-4)

DF=3

19. Length of segment FR

FR=-1 1/3-(-4)

FR= 2 2/3

17. Length of segment DE

DE=2 -(-1)

DE=3

20. Length of segment GH

GH= 3 1/2 -(-1)

GH=4 1/2

18. Length of segment FG

FG=3 1/2 -2

FG=1 1/2

21. Length of segment EH

EH=3 1/2-(-1 1/3)

EH= 4 5/6

Therefore the length of each segment is: DF=3, FR= 2 2/3, DE=3, GH=4 1/2, EH= 4 5/6.

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Answer:

dude my brain cells are perishing

-2/3 is your answer my guy

have fun

Step-by-step explanation:

The coordinates of point Q after dilation will be (2,-1). The correct option is B.

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.

Given that the coordinate is Q(8,-4). The point is dilated by a factor of 1/4.

The dilation of the point will be calculated as,

Q(8,-4) = Q'(8/4, -4 / 4)

Q(8,-4) = Q'(2, -1)

Hence the dilated point is Q'(2,-1).

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Answer:

48

Step-by-step explanation:

[tex]\frac{8}{5}[/tex] = [tex]\frac{x}{30}[/tex]

In the ratio there are 5 totts.  The farmer has 30 totts.

5 x 6 = 30, so 8 x 6 = 48

Answer:

Step-by-step explanation: i pretty sure it 240 because there is 8 on every 5 so 8x5 and there is 8 on every 30 8x30=240

The longer leg is the one that faces the 60-degree angle.

Any triangle with a 90-degree angle is considered a right triangle. A unique variety of right triangle with a 30-degree angle and a 60-degree angle in addition to the right angle is known as a 30-60-90 triangle.

Triangle Properties 30-60-90

A triangle with sides of 30-60-90 can be recognized by how they relate to the angles.

The shorter leg is the one that faces the 30-degree angle.

The longer leg is the one that faces the 60-degree angle.

The hypotenuse is the side that faces the right angle of 90 degrees.

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The first pattern has a difference of 5 while the second is 10 and become by multiplying 2 in pattern 1 so options (A), (B), and (E) will be correct.

A pattern is a specific arrangement of numbers or any term which will follow a specific code or hint. The hint which is present in a given pattern hides in the pattern only.

Given the two patterns.

In the first pattern, each term become by adding 5 so option (A) is correct.

In the second pattern, each term become by adding 10 so option (B) is correct.

The term in the second pattern becomes by multiplying 2 in pattern 1

For example 5× 2 = 10 and 10 × 2 = 20 so option (E) will be correct.

Hence, "The first pattern has a difference of 5 while the second is 10 and become by multiplying 2 in pattern 1".

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Answer:

12

Step-by-step explanation:

2x3 4+5

Answer:

large to-go boxes: $45.49/case (200 boxes per case)

small to-go boxes: $45.51/case (400 per case)

Step-by-step explanation:

large to-go boxes: $25.49/case (150 boxes per case)

small to-go boxes: $40.51/case (500 per case)

to-go cups w/ lid: $37.50/case (500/case)

Answer:−

-9−27x

Step-by-step explanation:

The number of people that will attend each game is given as follows:

The number of attendees will be of 500 on the 857th game, which does not make sense in the context of this problem, as a football team plays at most nine home games during a season. (taking the NFL in context).

The logarithmic function for this problem is defined as follows:

[tex]a(g) = 10 - \log_3{(g + 1)}[/tex]

Hence the number of people that will attend the second home game, when g = 2, is given as follows:

[tex]a(2) = 10 - \log_3{(2 + 1)}[/tex]

a(2) = 10 - 1

a(2) = 9.

Hence 9,000 people, as a(g) is measured in thousands.

The number of people that will attend the eight home game is given as follows:

[tex]a(8) = 10 - \log_3{(8 + 1)}[/tex]

a(8) = 10 - 2

a(8) = 8. (8,000, considering the unit of a(g)).

The game in which 500 people will attend is obtained as follows:

[tex]0.5 = 10 - \log_3{(g + 1)}[/tex]

[tex]\log_3{(g + 1)} = 9.5[/tex]

Applying the cube to both sides, we have that:

g + 1 = 9.5³

g = 857.

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