Write using exponential notation.9 ? 9 ? 5 ? 5 ? 5 ? 5 ? 7
A. 92 ? 54 ? 7
B. (9 ? 5 ? 7)7
C. 9 ? 5 ? 77
D. 29 ? 45 ? 17
Answer: A
Mathematics
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Evaluate the integral by using multiple substitutions.
dy
A. 6 sin2 
+ C
B. 
cos4 
+ C
C. 
sin4 
+ C
D. 2 sin4 
+ C
Mathematics
Compute r, the linear coefficient of correlation, for the given data.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters):
A. 0.256 B. 0.196 C. 0 D. -0.210
Mathematics
Simplify the polynomial by adding or subtracting, as indicated. Express your answer as a single polynomial in standard form.Subtract (5a - 1) from (4a + 8).
A. a - 9 B. -a + 9 C. -a + 7 D. 9a + 7
Mathematics
Evaluate the function.Find f(19) when f(x) = 
A. -18 B. -20 C. 20 D. 18
Mathematics