Given f (x, y) = cos (e2x+ y ), find ?2f / ?y2
What will be an ideal response?
Mathematics
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Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 
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Mathematics
Determine the order of the matrix.
A. 1 B. 1 × 3 C. 3 D. 3 × 1
Mathematics
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t -30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. Find the period of T.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Given that the pair of triangles is similar, find the unknown length of the side labeled with a variable.
A. 20 B. 19 C. 25 D. 12
Mathematics