Evaluate the function.Find f(-5) when f(x) = -5x - 19.
A. 7
B. -5
C. 6
D. -19
Answer: C
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Use the graph of y = P(x) to do the following: (i) Find the x-intercepts; (ii) Solve the equation P(x) = 0; (iii) Find the zeros of P(x).
A. (i) -2, 5; (ii) -2, 5; (iii) -2, 5 B. (i) 0, 10; (ii) 0, 3, 10; (iii) 0, 3, 10 C. (i) 0, 3; (ii) 0, 3; (iii) 0, 3 D. (i) -2, 5, 10; (ii) -2, 5; (iii) -2, 5, 10
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(-7x2 + 2) - (-x3 + 3x2 + 8)
A. -6x3 + 3x2 - 6 B. -6x3 + 5x2 - 8 C. x3 - 10x2 - 6 D. x3 - 4x2 + 10
Solve the motion problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 40 miles per hour B. 20 miles per hour C. 80 miles per hour D. 50 miles per hour
A multiple-dose vial been mixed and labeled "200,000 units in 1 cm 3 ." How many cubic centimeters are needed to give 900,000 units?
A. 2.3 cm 3 B. 4.5 cm 3 C. 3.7 cm 3 D. 3.4 cm 3 E. 1.2 cm 3