Tell whether the relation is a function.?

A. Function
B. Not a function


Answer: B

Mathematics

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Simplify. Assume that all variables represent positive real numbers.

A.
B.
C.
D.

Mathematics

The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = -4 sin (5t)

A. simple harmonic; 4 m;   sec;   ? oscillations/sec
B. simple harmonic; -4 m;   ? sec;   oscillations/sec
C. simple harmonic; 4 m;   ? sec;   oscillations/sec
D. simple harmonic; -4 m; 5 ? sec;   oscillations/sec

Mathematics

Factor completely.8x2 - 28x - 16

A. 4(2x - 1)(x + 4) B. prime C. (8x - 4)(x + 4) D. 4(2x + 1)(x - 4)

Mathematics

Graph the hyperbola. Give the coordinates of the center as well as the values of a and b. -  = 1

A. center (0, -2), a = 4, b = 3

B. center (0, -2 ) a = 4, b = 3

C. center (-2, 0), a = 4, b = 3

D. center (-2, 0), a = 4, b = 3

Mathematics