Use a grapher to find the vertex, rounding to the nearest hundredth when necessary.f(x) = 0.2x2 + 0.1x + 8.8
A. (-0.05, 8.8)
B. (0.25, 8.81)
C. (0.25, 8.79)
D. (-0.25, 8.79)
Answer: D
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Use synthetic division to find the quotient and remainder.(x3 - 5) ÷ (x - 1)
A. x3 - x2 - x - 1
B. x2 + x + 1 + 
C. x2 + x + 1 + 
D. x2 - x - 1
Solve the problem.If P dollars are deposited every 4 weeks in an account paying an annual interest rate r expressed as a decimal, then the amount A in the account after 2 years can be approximated by A = 
÷ 
Write this expression as a complex fraction.
A. 
B. 
C. 
D. 
Answer the question. POLLUTION 
Years since 1980Use the ordered pairs (2, 14.78), (6, 11.82), and (8, 13.58) to find a quadratic function that models the data. Round the values of a, b, and c to two decimal places.
A. y = -2.90x2 + 0.27x + 19.50 B. y = 2.90x2 - 0.27x + 19.50 C. y = 0.27x2 - 2.90x + 19.50 D. y = -2.90x2 + 0.27x + 20.50
Solve the problem.A pendulum of length 12.5 inches swings 1°6' to each side of its vertical position. To the nearest hundredth of an inch, what is the length of the arc through which the end of the pendulum swings?
A. 0.18 in. B. 0.28 in. C. 0.48 in. D. 0.38 in.