Solve.
- 
= 
A. - 
B. -11
C. - 
D. empty set solution
Answer: C
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Find the mean, median, and mode of the list of numbers.9, 10, 20, 20, 14, 11, 11, 13
A. mean: 13.5; median: 13; mode: 15.5 B. mean: 13.5; median: 12; mode: 11 and 20 C. mean: 9.625; median: 17; no mode D. mean: 12; median: 13.5; no mode
Use the quotient rule to divide and simplify.
A. x2 
B. x2 
C. 4x2 
D. 4x2
Use a cubic or quartic regression (as specified) to fit a curve through the points given in the table. Round to the nearest hundredth.
(Cubic)
A. y ? 0.38x3 - 5.35x2 + 24.97x - 33.40 B. y ? 0.38x3 - 4.35x2 + 22.97x - 33.40 C. y ? 0.28x3 - 5.35x2 + 22.97x - 33.40 D. y ? 0.28x3 - 4.35x2 + 24.97x - 33.40
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.x9 ? x3
A. x27 B. 27x C. 12x D. x12