Add 39 and 82 in base 10.

a. 111
b. 121
c. 131
d. 134
e. 142


b. 121

Mathematics

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Evaluate the integral by using a substitution prior to integration by parts.

A. x cos (ln x) + sin (ln x)+ C
B. [cos (ln x) + sin (ln x)] + C
C. [cos (ln x) - sin (ln x)] + C
D. x[cos (ln x) + sin (ln x)] + C

Mathematics

Provide an appropriate response.If f(b) = 4 and f(x) is decreasing on the interval [a, b], then which method of estimating the area under the graph of f(x) and above the x-axis will yield the lowest value? Assume that n = 10 in all cases.

A. Using left endpoints B. Using midpoints C. Cannot be determined D. Using right endpoints

Mathematics

Evaluate the expression.P(13, 6)

A. 617,760 B. 10,080 C. 1,235,520 D. 8,648,640

Mathematics

Write the equation of the function in the form f(x) = ax2 + bx + c.

A. f(x) = -x2 - 4x + 8 B. f(x) = -x2 + 2x - 8 C. f(x) = x2 - 4x + 8 D. f(x) = -x2 + 2x + 8

Mathematics