First bring the 9 to the other side by subtracting it so you get the equation; x^2+10x-9=0 and you answer would be x=9 and x=1. you may have wrote the question own wrong? is the x^2 negative? if so i give my answer :)
1 in 14 or 1/14
this is the formula I used to calculate:
Probability = Favorable cases / Possible cases
Answer: as the sample size is approximately large, the margin of the error is 0.15
Step-by-step explanation:
Answer:
35$
Step-by-step explanation:
Set up a proportion
5hr=25
7hr=x
Cross multiply
5x=175
divide both sides by 5
x=35$
