Answer:
21
Step-by-step explanation:
(9x2 + 6x – 7) + (-9x - 5) = 21
C.
No value of x has two values of y, thus it is a one-to-one function.
Answer:the third one .38x+2.59
Step-by-step explanation:
No amount of donuts yet so that’s why it’s x and there’s a regular fee of 2.59 so that’s why it’s the answer
Answer:
D
Step-by-step explanation:
I usually use a z-score table, but you can do this with a calculator.
If we go to a z-score table, we first look up the first two digits (in this case, 2.8) in the far left column. Then we find the hundredths digit in the top row (0.07). Where they intersect is P(z < 2.87).
P(z < 2.87) = 0.9979
Answer D.