Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.log4 x + log4 (x - 15) = 2

A. {4}
B. {1, -16}
C. {-1, 16}
D. {16}


Answer: D

Mathematics

You might also like to view...

Convert as indicated.0.2 g = ____ kg

A. 0.002 B. 20 C. 200 D. 0.0002

Mathematics

For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 8 - 9x, g(x) = -5x + 9Find (f + g)(x).

A. -14x + 17 B. -4x + 17 C. 3x D. -5x + 8

Mathematics

Use De Morgan’s laws to choose an equivalent form of the following sentence. It is not true that penguins and bears live in the Antarctic.

a.  Penguins do not live in the Antarctic. b.  Bears do not live in the Antarctic. c.  It is not true that penguins or bears live in the Antarctic.

Mathematics

Use the Gauss-Jordan method to solve the system of equations.

A. x = 0, y = 2, z = -1 B. x = -1, y = 0, z = 2 C. x = -1, y = 2, z = 0 D. No solution

Mathematics