Combine the complex numbers.(6 + 7i) - (-8 + i)

A. 14 + 6i
B. 14 - 6i
C. -14 - 6i
D. -2 + 8i

Answer: A

Mathematics

Which of the following is the best measurement unit to estimate the width of a penny?

A. ?millimeters B. ?centimeters C. ?inches D. ?a dime's width E. ?lined paper

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Mathematics

Determine the quadratic function whose graph is given.

A. f(x) = x2 - 4x B. f(x) = -x2 + 4x C. f(x) = -x2 - 4x D. f(x) = x2 + 4x

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Mathematics

Find an equation of a polynomial function of least degree having the given complex zeros, intercepts, and graph.f(x) has complex zeros -i and -2i

A. f(x) = (x - 1)(x + 1)(x - 4)(x + 4)(x - 1)
B. f(x) = (x² + 1)(x² + 4)(x - 1)
C. f(x) = (x² + 1)(x² + 4)(x - 1)
D. f(x) = (x² + 1)(x² + 4)(x + 1)

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Mathematics

Write an equivalent expression in exponential form.ln e5 = 5

A. e5 = e5 B. ln 5 = 5 C. e5 = 5 D. ln e5 = e5

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Mathematics