State whether the parabola opens upward or downward.f(x) = -0.7x2 + 8

A. Upward
B. Downward

Answer: B

Mathematics

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Solve the problem.The position (in centimeters) of an object oscillating up and down at the end of a spring is given by  at time t (in seconds). The value of A is the amplitude of the motion, k is a measure of the stiffness of the spring, and m is the mass of the object. How fast is the object accelerating when it is accelerating the fastest?

A. A cm/sec2
B. A2 cm/sec2
C. A cm/sec2
D.  cm/sec2

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Mathematics

Write the contrapositive of the statement.If the TV is broken, then I cannot watch my programs.

A. If the TV is not broken, then I can watch my programs. B. If the TV is not broken, then I cannot watch my programs. C. If I can watch my programs, then the TV is not broken. D. If I cannot watch my programs, then the TV is broken.

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Mathematics

Find the distance d(P1, P2) between the points P1 and P2.P1 = (0, 0); P2 = (-10, -2)

A. 12
B. 104
C. 2
D. 2

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Mathematics

Solve the problem.The formula for the slope of a line passing through two points is:  m =  .  Find the slope of a line passing through the points (-3, -9) and (5, 1).

A.
B.
C.
D.

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Mathematics