Evaluate f(x) at the given value of x.f(x) = -2x2 + 5x - 2 for x = 3

A. -5
B. 7
C. -15
D. -9


Answer: A

Mathematics

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If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.

A. 2.35 B. -39 C. 3.35 D. 3.61

Mathematics

Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.4 ln x -  ln y

A. ln x4
B. ln x4y4
C. ln 
D. ln 

Mathematics

Solve the problem.A pest control company sprays insecticide around the perimeter of a 270 ft by 130 ft building. If the spray costs $0.13 per foot, how much did the job cost to the nearest dollar?

A. $52 B. $4563 C. $380 D. $104

Mathematics

Solve the problem.Find parametric equations for an object that moves along the ellipse  +  = 1 with the motion described.The motion begins at (0, 4), is clockwise, and requires 2 seconds for a complete revolution.

A. x = 2 sin (2?t), y = 4 cos (2?t), 0 ? t ? 2 B. x = 2 sin (?t), y = 4 cos (?t), 0 ? t ? 2 C. x = 2 sin (?t), y = -4 cos (?t), 0 ? t ? 2 D. x = 2 cos (?t), y = 4 sin (?t), 0 ? t ? 2

Mathematics