Simplify. Assume that all variables represent non-negative real numbers.
A. 2x5
B. 2x15
C. 8x5
D. 2x18
Answer: A
Mathematics
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Find the derivative.y = 109x
A. (90 ln 9)109x B. (9 ln 10)109x C. (10 ln 9)109x D. (90 ln 10)109x
Mathematics
Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cot(3x - 8)
A. y = cot u; u = 3x - 8; 
= - 3 cot(3x - 8) csc(3x - 8)
B. y = cot u; u = 3x - 8; 
= - csc2(3x - 8)
C. y = 3u - 8; u = cot x; 
= - 3 cot x csc2 x
D. y = cot u; u = 3x - 8; 
= - 3 csc2(3x - 8)
Mathematics
Find the absolute value of the quantity.15 - 15
A. 30 B. 15 C. -15 D. 0
Mathematics
Perform the indicated operations.13 + 22 ? 11 - (-19)
A. 45 B. 206 C. 76 D. 16
Mathematics