Suppose that a normal distribution has a mean of 20 and a standard deviation of 4. What is the z-score of 13?

Which of the relations below is a function? Group of answer choices{ (2,3), A (3,4), (5,1), (6,2), (2,4) B}{ (2,3), (3,4), (5,1), (6,2), (7,3) }C{ (2,3), (3,4), (5,1), (6,2), (3,3) }

Suppose that you have 11 cards. 5 are green and 6 are yellow. The 5 green cards are numbered 1, 2, 3, 4, and 5. The 6 yellow cards are numbered 1, 2, 3, 4, 5, and 6. The cards are well shuffled. You randomly draw one card.

How do you write 3 1/6 as a decimal

Factor the polynomial using the pattern. x2 - 9x + 20

1. Steven wants to buy a $500 bicycle. Steven has no money saved, but will be able to deposit $45 into a savings account when he receives his paycheck each Friday. However, before Steven can buy the bike, he must give his sister $85 that he owes her.

Solve 3 (x - 1) = 2x + c

What devided by what equals 74

Solve for b a^2+b^2=c^2

The sun shines at a 60° angle to the ground. How long is the shadow cast by a 20 ft tall flagpole?

How do you do this 9x-3=5x-15?