Please help! Find the error & explain why it is wrong:
Megan wanted to find the 15th term in the arithmetic sequence given the explicit formula below.

What did she do wrong?

Step___ is incorrect because_. Instead, you should _.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

What does independent variable and dependent variable mean in math?