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svetlana [45]
3 years ago
8

A dance competition on television had five elimination rounds. After each elimination, only one-fourth of the contestants were s

ent to the next round. The table below shows the number of contestants in each round of the competition: x 1 2 3 4 5 f(x) 512 128 32 8 2 Compute the average rate of change of f(x) from x = 2 to x = 4 and describe what it represents.
−60 contestants per round, and it represents the average rate at which the number of contestants changed from the second round to the fourth round

−120 contestants per round, and it represents the average rate at which the number of contestants changed from the second round to the fourth round

−60 contestants per round, and it represents the number of contestants who will reach the final round

−120 contestants per round, and it represents the number of contestants who will reach the final round
Mathematics
2 answers:
ella [17]3 years ago
6 0

Answer:

A

Step-by-step explanation:

creativ13 [48]3 years ago
4 0
When x =2, f(x) = 128
When x = 4, f(x) = 8

The changing rate is \frac{8-128}{4-2}= \frac{-120}{2}=-60

This changing rate represents the decrease of the number of contestants as the competition approaches the final.

Correct option is the first option
<span>
−60 contestants per round and it represents the average rate at which the number of contestants changed from the second round to the fourth round 
</span>
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Answer:

A.) 5 x 2.80 B.) 100

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A line has a slope of -2/5. Generate the coordinates of two points that would lie on the same line
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Answer:

Many solutions are possible. One example is (10,5) and (5,7).

Step-by-step explanation:

The slope is the distance between points represented as a ratio of vertical to horizontal distances. It is a difference or subtraction. To find two points work backwards. What two points have y values with a distance of -2?

5-7=-2

So the points are (x,5) and (x,7).

Now what x values have a distance of 5?

10-5 = 5

So the points are (10,5) and (5,7).

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The expression
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Answer:

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a ferris wheel is an amusement park ride comprised of a large wheel rotating on an axis. there are cars or compartments where pe
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The research was conducted on the ferris wheel. The number of cars or compartments is 32. The London Eye and the diameter of the wheel is 120m.

It is required to find the solution.

<h3>What is a statement?</h3>

A statement is a declarative sentence that is either true or false but not both. A statement is sometimes called a proposition. The key is that there must be no ambiguity. To be a statement, a sentence must be true or false, and it cannot be both.

Given:

The circumference of the wheel will be:

= 2πr

= 2π(120/2)

= 377m

The area of the wheel will be:

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The measure of a central angle in degrees will be:

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The measure of a central angle in radians will be:

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The area of a sector between two cars or compartments will be:

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An equation of a circle for your ferris wheel when the center of the ferris wheel is located at (0, 0) on a coordinate grid will be x² + y² = 3600.

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2 years ago
How do you find the general solution for cos2A=cos^2A
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Answer:

A =  0 +/- nπ radians ,  where n is an integer.

Step-by-step explanation:

cos 2A =  cos^2 A

Use the identity cos 2A = 2 cos^2 A -1  :

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When cos A = 1,  A = 0 +/- 2nπ radians.

when cos A = -1, A = π +/- nπ radians.

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