3
Seventh grade
AA.12 Surface area of pyramids XSJ
») What is the surface area of this triangular pyramid?
3 m
3 m
2.6 m
square meters
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Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Which of the following is an equation of a line parallel to the equation y=4x+1?

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?