Evaluate the product using a sum or difference of two functions, leave them in terms of sine or cosine.

2cos (56) cos (47)

Which of the following are measures of complementary angles? A) 44 and 136 B) 20 and 25 C) 18 and 72 D) 6 and 940

3/11 = ?/22 what's the best answer?

Is - 4, 12, - 36, 108, - 324 arithmetic or geometric

Cost of a cd is $14.50 markup:70% find the selling price

Rectangle with a width of 36 centimeters and a perimeter of 80 centimeters

Jaime wants to know how fast she can type, so she times herself as she types a paper. The paper has 442 words in it, and Jaime types it in 13 minutes. What is her typing rate, in words per minute?

How can one fourthx - 3 = one halfx + 8 be set up as a system of equations?

Chris invests $2,200 into three accounts that pay 6%, 8% and 9% in annual interest. He has three times as much invested at 9% as he does at 6%. If his total interest for the year is $178, how much is invested at each rate?

If AC = 12 and BC = 13, find AB.

How to Simplify 306/315