Remove the parentheses and simplify, if possible.(3a + 5) + (a2 - a - 10)

A. 3a - 5
B. a2 + 2a - 5
C. 3a + 15
D. a2 + 2a + 15


Answer: B

Mathematics

You might also like to view...

Find the indicated derivative. Assume that x is restricted so that ln is defined.g'(x) if g(x) = ln(2x +  )

A.
B.
C.
D.

Mathematics

Simplify the complex fraction.

A.
B.
C.
D.

Mathematics

The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error . Round your answer, if appropriate.f(x) = x3, x0 = 9, dx = 0.02

A. 0.016212 B. 0.005404 C. 0.010808 D. 0.021616

Mathematics

For each quadratic function, find (a) the maximum or minimum value and(b) the x- and y-intercepts.Round answers to the nearest hundredth.f(x) = 2.27x2 + 4.062x - 3.63

A. Minimum value:  -5.45; No x-intercepts, (0, -3.63) B. Minimum value:  -5.45; Intercepts: (0.65, 0), (-2.44, 0), (0, -3.63) C. Minimum value:  -5.45; Intercepts: (2.44, 0), (-0.65, 0), (0, -3.63) D. Maximum value:  -5.45; Intercepts: (0.65, 0), (-2.44, 0), (0, -3.63)

Mathematics