Use a calculator's sin, cos, and tan keys, and an appropriate trigonometric identity to find the following value to three decimal places. sec 108°

A. 2.663
B. 1.051
C. -2.686
D. -3.236


Answer: D

Mathematics

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Use a number line to find the difference.-9 - (-1)

A. 9 B. -8 C. -9 D. -10

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Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = 2x4  - 16x3 + 33x2 - 8x + 16

A. -4, 4; f(x) = (x - 4)(x + 4)(2x2 + 1) B. 4, multiplicity 2; f(x) = (x - 4)2(2x2 + 1) C. no real roots; f(x) = (x2 + 16)(2x2 + 1) D. -4, multiplicity 2; f(x) = (x + 4)2(2x2 + 1)

Mathematics

Find the integral.

Mathematics