Use identities to find the exact value of the trigonometric function.Find cot ? if sec ? = 
and ? is in quadrant IV.
A. - 
B. -6
C. -
D. 6
Answer: B
Mathematics
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Find the derivative of the function at P0 in the direction of u.f(x, y) = ln(10x + 5y), P0(7, 9), u = 6i + 8j
A. 
B. 
C. 
D. 
Mathematics
Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
What was the percent of decrease in the number of female athletes from 2004 to 2005?
A. 50% B. 25% C. 13.3% D. 18.75%
Mathematics
Solve and graph. Write the result in interval notation.3x ? 18
A. (-?, 6)
B. (-?, 6]
C. [6, ?)
D. (6, ?)
Mathematics
Solve.2x1/2 - 3x1/4 - 2 = 0
A. 16, 
B. 16
C. -2, -1
D. 2, - 
Mathematics