The function f(x)equalsxsquared describes the area of a square, f(x), in square inches, whose sides each measure x inches. a. nbsp If x is changing, find the average rate of change of the area with respect to x as x changes from 5 inches to 5.2 inches and from 5 inches to 5.02 inches. b. nbsp If x is changing, find the instantaneous rate of change of the area with respect to x at the moment when xequals5 inches.

A) As x changes from 5 inches to 5.2 inches , average rate of change = 10.2π in²/in

- As x changes from 5 inches to 5.02 inches , average rate of change = 10.02π in²/in

B) Instantaneous rate at x=5 is; 10π in²/in

Step-by-step explanation:

A) We are given that the function which is the area of the square is given by:

f(x) = πx²

As x changes from 5 to 5.2, a=5 and h = 0.2

Average rate of change between 2 points A and B is given by;

[f(a+h) - f(a)]/h

Thus, at a=5 and h = 0.2, we have;

[f(5+0.2) - f(5)]/0.2

= [f(5.2) - f(5)]/0.2

Since, f(x) = πx², let's substitute for x to obtain ;

[(π•5.2²) - (π•5²)]/0.2 = 10.2π in²/in

As x changes from 5 to 5.02, a=5 and h = 0.02

Average rate of change between 2 points A and B is given by;

[f(a+h) - f(a)]/h

Thus, at a=5 and h = 0.02, we have;

[f(5+0.02) - f(5)]/0.02

= [f(5.02) - f(5)]/0.02

Since, f(x) = πx², let's substitute for x to obtain ;

[(π•5.02²) - (π•5²)]/0.02 = 10.02π in²/in

B) The instantaneous rate of change of the area with respect to x will be the derivative of f(x).

Thus, since f(x) = πx²

f'(x) = 2πx

So, at x = 5 inches,

Instantaneous rate = 2π(5) = 10π

the results from a pre-test for students for the year 2000 and the year 2010 are illustrated in the box plot. what do these results tell us about how students performed on the 29 question pre-test for the two years?

if we compare only the lowest and highest scores between the two years, we might conclude that the students in 2010 did better than the students in 2010. this conclusion seems to follow since the lowest score of 8 in 2010 is greater in value than the lowest score of 6 in 2000. also, the highest score of 28 in 2010 is greater in value than the highest score of 27 in 2000.

but the box portion of the illustration gives us more detailed information. the middle bar in each box shows us that the median score of 20 in 2000 is greater in value than the median score of 17 in 2010. further, we note that the box and whiskers divide the illustration into four pieces. each of these four pieces represents the same portion of students. so, the upper half of the students in 2000 scored in the same score range as the upper one-fourth of the students in 2010, see the illustration at a score of 20.

by considering the upper one-fourth, upper half, and upper three-fourths instead of just the lowest and highest scores, we would conclude that the students as a whole did much better in 2000 than in 2010. we would conclude that as a whole the students in 2010 are less prepared than the students in 2000.

in this section, we discuss box-and-whisker plots and the five key values used in constructing a box-and-whisker plot. the key values are called a five-number summary, which consists of the minimum, first quartile, median, third quartile, and maximum.

step-by-step explanation:

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: