Verify the identity.

cos 4x + cos 2x = 2 - 2 sin2 2x - 2 sin2 x

The band members sold tickets to their concert performance. somewhere $3 tickets, and some were $8 tickets. there were 10 more than twice as many $8 tickets sold $3 tickets. the total sales were $1448. how many tickets of each price were sold

Simplify using the horizontal method (2n^2+5n+5) (2n-4)

Shane wants to figure out what rade he is getting in math. His text scores were 85.6, 78.5, 92.5,67, & 83.7 what was his average text score?

A test was given to a group of students. The grades and gender are summarized below: A B C Total Male 14 9 18 41 Female 7 13 12 32 Total 21 22 30 73 (a) If one student is chosen at random from those who took the test, Find the probability that the

What are the next three terms in the sequence 4, - 3, - 10, - 17, ...? A) - 24, - 31, - 38 B) - 18, - 19, - 20 C) - 34, - 68, - 134 D) - 25, - 30, - 35

X is greater than or equal to - 10

You are playing a board game with a friend. At the start, you move four spaces back. On your next turn, you move two spaces forward. Which expression can be used to find how far you are from your original position?

How would I solve -1+2i / - 1-3i

A colony contains 1500 bacteria. The population increases at a rate of 115% each hour. If x represents the number of hours elapsed, which function represents the scenario?

Carrie needs $45 to buy her mother a gift she has 22% saved up already how much does she still need