Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.x2 - x = 20

A. 4, 5
B. -4, -5
C. 1, 20
D. -4, 5


Answer: D

Mathematics

You might also like to view...

Use the decibel scale to answer the question.How many times as loud as the softest audible sound is the sound of threshold of pain for human ear (90 decibels)?

A. 103 B. 1090 C. 1018 D. 109

Mathematics

Solve the problem.Find the derivative of the function    at the point    in the direction in which the function increases most rapidly.

A.
B.
C.
D.

Mathematics

Use the LCD to simplify and solve.x +  = x

A. {12} B. {8} C. {-8} D. {-12}

Mathematics

Graph the rational function.f(x) =   

A.

B.

C.

D.

Mathematics