Describe the relationship between kinetic energy and speed. a) a positive linear relationship. b) a negative linear relationship. c) a negative, but not linear relationship. d) a positive, but not linear relationship.

The correct answer is D) A positive, but not linear relationship.

This comes from the equation Ek=1/2mv^2

Where Ek is Kinetic Energy, m is mass, and v is the speed (or velocity).

As we can see in the equation, the relation is not linear but quadratic and it is positive.

The graph slopes up, but the points do not make a single straight line. This indicates a positive, but not linear relationship.

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34