Which expressions can be used to find m? bac? check all that apply. cos? 1 6.9/12 cos? 1 9.8/12 sin? 1 6.9/12 sin? 1 9.8/12 tan? 1 6.9/9.8 tan? 1 9.8/6.8

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?

What is the perimeter of an equilateral triangle if each side is (x+3)?

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?