Which double-angle or half-angle identity would you use to verify that sin2x/2sin^2x=cotx

Uma wrote the following. 15=x x=15 Which property of equality did she use? transitive property of equality substitution property of equality multiplication property of equality symmetric property of equality

Find the unit rate 70 words per 2 minutes

What is the vertex of the parabola in the graph? (,)

1. Players from the local Little League plans to hold a car wash as a fundraiser. If they charge $5 per car, how many cars do they need to wash to earn at least $250 dollars? a.

A frozen turkey bought in canada is labeled "5.0 kilograms." this is a measurement of its mass. what is its weight in newtons.

A softball is thrown straight up, reaching a maximum height of 20 meters, what is the ball's approximate vertical speed when it hits the ground?

What is the radius of a circle with a sector area of 7 ft. and an arc whose measure is 70°

Mark, Carrie, Max and Jane are doing a probability experiment in math class. They flip a coin 200 times and record their results. Heads: 120 Tails: 80 Question 1 on their lab sheet asks for the experimental probability of flipping heads.

Jim has 4 New York quarters, 3 Pennsylvania quarters, and 3 Virginia quarters in his pocket. What is the probability that he will get a Pennsylvania quarter followed by a Virginia quarter when he pulls two quarters out of his pocket?

Delia worked 45 minutes on her oil painting. She took a break at 10:35 a. m. At what time did Delia start working on her painting