In a triangle ABC, tan (a) = 20/21. Find sin (a) and cos (a)

Question 1. Evaluate m : n for m = 1/4 and n = 4/5 a. 1/5 b. 5/16 c. 5 d. 16/5 Question 2. Find the quotient 2/9 : 4/6 a. 3/4 = b. 2/3 = c. 4/27 = d. 1/3 = Question 3. Solve the equation 13 r = 3/7 Express your answer in simplest form. a.

To illustrate the importance of outliers, suppose you do not count the owner in the last problem. The data for the other workers is: 5 people earn $25,000, 3 earn $27,000, and 1 earns $34,000 What is the mean salary and standard deviation (to the

If 16 key chains cost cost $19.68 how much do 25 key chains cost

What is the area of the figure rounded to the nearest tenth

Use the combination method to solve for y: 5x + 3y = 12 and - 5x + 4y = 16 y = 4 y = 0 y = - 10 y = - 4

Six more than five times a number is the same as nine less than twice the number. Find the number.

What is 5 to the 3rd power in standard form

You can choose from groups of 2, 3, or 5 balloons, and you can choose to have them tied together with either a red ribbon or a blue ribbon. How many outcomes would make up the sample space?

rady White weighed 197 1/2 pounds when he decided to join a gym to lose some weight. At the end of the first month, he weighed 191 3/8 pounds. (Enter your answers as simplified mixed number

What is the answe to (3x+2) (3x-2)