Find the vertex of the given parabola.f(x) = 2x2 + 20x + 47

A. (3, 5)
B. (-3, -5)
C. (5, 3)
D. (-5, -3)


Answer: D

Mathematics

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State which type of average, the mean, median, or mode, would be most appropriate in the situation described. Explain your thinking.A state governor is planning a tax cut. A researcher calculates the average amount that will be saved by residents of the state. Which average would best convey the amount that will be saved by most residents of the state?

What will be an ideal response?

Mathematics

Solve the polynomial equation.(2x - 9)(x + 4)(x - 3) = 0

A. 108
B. - , 4, -3
C. 9, -4, 3
D. , -4, 3

Mathematics

Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?

A. 20 B. 100 C. 10 D. 500

Mathematics

Solve using matrices.  x + y = -2

A. (-6, -4, -7) B. (6, -4, 3) C. (2, 4, 1) D. (2, -4, 1)

Mathematics