Verify the identity.

tan (x + (pi/2)) = - cot x

How much do I have to pay if I buy something that cost $25 and has a 10% off?

5m+72=-2m+52 A - 1 B - 1/7 C 6/7 D 7

Im supposed to distribute ans solve this 18-3 (y+6) = 21

3ab^2-4a^2b+ab/ab how do I solve this?

He low temperatures of four cities for August 26, 2007 are as follows: Honolulu 73° Base Esperanza - 5° Nome 47° Washington, D. C. 72° List the cities in order from greatest to least temperature. A. Base Esperanza; Nome; Washington, D. C.

If the factors of a polynomial are x-2 and x-5, what values of x make that polynomial 0? A. 1 and 2 B. - 2 and - 5 C. 2 and 5 D. Cannot be determined

A dog weighs 2 pounds more than a cat. 3 cats and 4 dogs together weigh 43 pounds. How much does a dog weigh? How much does a cat weigh?

Is y equals x to the third power + x equals - 3 then what does y equal

What is f and x in f (x) = 7

18 * 5 * 10 * 9 * 7