The length of skid marks of a car's tires varies directly as the square of the speed of the car. If skid marks of 20 feet are produced at 30 miles per hour, how fast would the same
car be going if it produced skid marks of 80 feet?

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8

four boxes of pizza

hope this