By visual inspection, determine the best-fitting regression model for the scatterplot.
A
O A. Linear
B. No pattern
O C. Quadratic
D. Exponential

Can you simplify 4/7? 24 points will be awarded!

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(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).