Answer:
Step-by-step explanation:
2x^+9x=10
2x^2+9x-10=0 is standard form
9, its 9, trust me, its 9.
Answer:
0.7755
Step-by-step explanation:
If 120 CDs are defective, the number of non-defective CDs in the batch is:

In order for the batch to be accepted, all of the 4 CDs in the sample must not be defective, the probability of that happening is:

The probability that the entire batch will be accepted is 0.7755.
If n = number of hours and the equation is 174 + 58n then the answer is 3 hours
174 = 58n
÷ 58
3 = n
2 (2x - (2 - 2y + 3x) + 4y) =
2 (2x - 2 - 2y + 3x + 4y) =
2 (5x + 2y - 2) =
10x + 4y - 4
This was my solution.