By rounding to 1 significant figure, estimate
542.04 x 1.88

Factor the expression using gcf 9b+45

Indicate the formula for the following conditions: p^c(n,r)=

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?