Posttest 1. simplify the expression.
please and thank you

11 √7

Step-by-step explanation: You can just simply add the numbers outside of the √ 4 + 7 = 11 and keep the √7 the same, since both numbers in the expression have the same √7.

This will give you a simplified expression of 11 √7

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

what's the question?

step-by-step explanation:

there is no question.