Answer:
54.4
Step-by-step explanation:
The equasion has only one solution.
Answer
I know the answer but i can not write it all out so i will say the last one is greatest the next to last one is in the right spot and switch the first two
Step-by-step explanation:
Sorry couldn't help too much
Answer: 1.2703
Step-by-step explanation:
Given : Sample size : n= 17, which is a small sample (n<30), so we use t-test.
Significance level : 
Then , Critical value : 
Standard deviation: 
The formula to find the margin of error : -

Hence, the error bound (EBM) of the confidence interval with a 90% confidence level.=1.2703
(4x+6)(2x-5)
= 8x^2 - 20x + 12x - 30
= 8x^2 - 8x - 30