Find the value of the expression if sin beta = 0.45, find cos (pi/2-beta)

A set of 20 cards consists of 12 red cards and 8 black cards. The cards are shuffled thoroughly and you choose one at random, observe its color, and replace it in the set.

Mr. Jones paid $40.68 for 3 kg of shrimp. What is the cost of 1 kg of shrimp?

What is 5x + 7 = 11

You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? equation one: 2x - 3y = 12 equation two: - x + 2y = 13 A. Multiply equation 1 by 2 and equation two by 3. Then add the new equations. B.

The formula used to measure area of circle is a. 4πr² b.πr² c. 2πr² d.πr² + 2r

I am a polygon I am a quadrangle all my sides are the same length none of my angels are right angels. What am I

If p is true and q is false, then p ∨ q is true. A. True B. False

Simplify the following: 6x - 6y + 4x - 3y - 5x + 7x

Alfred is practicing typing. The first time he tested himself, he could type 30 words per minute. After practicing for a week, he could type 33 words per minute. After two weeks he could type 36 words per minute.

the perimeter of the flag is 2340 ft. what is the flags width and length if the length is 330 ft. greater than the width