Find the reciprocal.
A. 
B. 
C. 
D. 9
Answer: A
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (sin x)cos x
A. (sin x)cos x(cos x cot x - sin x ln (sin x)) B. cos x ln ( sin x) C. cos x cot x - ln (sin x) D. cos x cot x - sin x ln(sin x)
Mathematics
Solve the problem.Horace's mean score on five exams is 85.0. Find the sum of his scores.
A. 440 B. 453 C. 425 D. 355
Mathematics
Find all zeros of the function and write the polynomial as a product of linear factors.f(x) = x3 - x2 + 25x - 25
A. f(x) = (x - 1)(x + 5i)(x - 5i) B. f(x) = (x - 1)(x + 1)(x + 25) C. f(x) = (x - 1)(x + 5)(x - 5) D. f(x) = (x - 25)(x + i)(x - i)
Mathematics
Multiply. Change any mixed number to an improper fraction before multiplying.7
× 4
A. 56
B. 28
C. 30
D. 11
Mathematics