The measurement of the circumference of a circle is found to be 68 centimeters, with a possible error of 0.9 centimeter. (a) approximate the percent error in computing the area of the circle. (round your answer to two decimal places

2.65%

Step-by-step explanation:

Given : The  measurement of the circumference of a circle =  68 centimeters

Possible error : centimeter.

The formula to find the circumference :-

Differentiate the formula of circumference w.r.t. r , we get

The area of a circle  :-

Differentiate both sides w.r.t r, we get

The percent error in computing the area of the circle is given by :-

just needed some points but try socratic

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )