Use the appropriate sum or difference identity to write the given expression as a function of x alone.tan (x - ?)

A.
B. tan x
C.
D. -tan x


Answer: B

Mathematics

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Find the indicated term for the geometric sequence with first term, a1, and common ratio, r.Find a5, when a1 = 7, r = -3.

A. -1701 B. 567 C. -567 D. 81

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Evaluate. Round dollar amounts to the nearest cent and other answers to the nearest thousandth when necessary.400  for n = 221

A. 2,109,853,543 B. 2,236,439,042 C. 210,985,354 D. 223,643,904

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Find the area of the triangle. If necessary, round the answer to two decimal places.a = 4, b = 5, c = 7

A. 9.80 B. 10.01 C. 16.01 D. 3.46

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Graph the function.f(x) = log3(x + 4)

A.

B.

C.

D.

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