Step-by-step explanation:
answer criss-cross and divide by 5/8
Answer:
x² + x - 12 = 0
Step-by-step explanation:
If x = -4 and x = 3 are solutions to a quadratic equation, then
(x + 4)(x - 3) = 0
Expand the brackets: x² - 3x + 4x - 12 = 0
Combine like terms: x² + x - 12 = 0
Answer:
Step-by-step explanation:
The answer is D
Answer:
Yes, the two events are independent because P(NF | PB) = P(NF)
Step-by-step explanation:
Paperback Hardcover Total
Fiction 20 10 30
Nonfiction 60 30 90
Total 80 40 120
P(NF | PB) = 60/80 = 3/4
P(NF) = 90/120 = 3/4
