Graph the function. Give the domain and range.f(x) = log2 x

A. domain: (-?, 0); range: (-?, ?)

B. domain: (0, ?); range: (-?, ?)

C. domain: (-?, 0); range: (-?, ?)

D. domain: (0, ?); range: (-?, ?)


Answer: B

Mathematics

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Write the expression in terms of sines and/or cosines, and then simplify.

A.
B.
C. cos ? - sin ?
D.

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Solve the problem.To estimate the ideal minimum weight of a woman in pounds multiply her height in inches by 4 and subtract 130. Let W = the ideal minimum weight and h = height. W is a linear function of h. Find the ideal minimum weight of a woman whose height is 62 inches.

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Find the indicated coefficient or term.The coefficient of x8 in the expansion of (x2 - 3)7

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