John what's a build a slide for his daughters tree house. The slide is made from aluminium material that is cut from a roll. The aluminium material is sold by the foot. The tree house is 6ft off the ground and he wants the slide to be built at a 60 degree angle. Triangle PQR is a right triangle. How much aluminium material does he need to purchase for the slide? 60° and 6 ft Answers 7ft 8ft 9ft 10ft

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25