Solve the problem.Jack is currently driving into a headwind (17% decrease). If his normal mileage is 35 mpg, what will his car's mileage be in the headwind? Round your answer to the nearest tenth.
A. 52 mpg
B. 35 mpg
C. 29.1 mpg
D. 7.3 mpg
Answer: C
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Find the axis of symmetry of the graph of the parabola.f(x) = -(x + 1)2 + 6
A. x = 6 B. x = 1 C. x = -1 D. x = 2
Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).-9 + 12i
A. 15(cos 53.1° + i sin 53.1°) B. 15(cos 233.1° + i sin 233.1°) C. 15(cos 306.9° + i sin 306.9°) D. 15(cos 126.9° + i sin 126.9°)
Solve the equation.-2.5c = -15.0
A. {12.5} B. {-12.5} C. {2.0} D. {6.0}
Solve the problem.Assume that the annual sales of a small manufacturer can be modeled by a linear function and that sales were $10,500 in 1982 and $54,000 in 1987. Let x = 0 represent 1982 and f(x) represent annual sales, and write a formula for f(x).
A. f(x) = 8700x + 10,500 B. f(x) = 43,500x + 54,000 C. f(x) = 8700x + 54,000 D. f(x) = 43,500x + 10,500