QUICKLY PLEASE HELP Use the following image to answer the questions below: a. Based on the picture, what properties can you be sure this figure has? Think about angles, lines, and intersections.
b. Are and parallel? Explain your thinking.
c. What would you need to do to prove that and are parallel?

2/3(-6y+9x) expand each expression using the distributive property

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?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.