Identify the number as prime, composite, or neither.31
A. Neither
B. Composite
C. Prime
Answer: C
Mathematics
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Factor by grouping.14r2 + 63ry - 2xr - 9xy
A. (2r + 9y)(7x - r) B. (2r + 9y)(7r - x) C. (2r + 9y)(x - 7r) D. (9r + 2y)(7r - x)
Mathematics
Give the center and radius of the circle. Then sketch its graph.x2 + y2 = 25
A. center (1, 1), r = 5
B. center (0, 0), r = 25
C. center (0, 0), r = 5
D. center (1, 1), r = 25
Mathematics
Find the mode(s) for the given sample data.The speeds (in mi/h) of the cars passing a certain checkpoint are measured by radar. The results are shown below.
A. 42.63 B. 40.9 C. 42.5, 44.5, 40.9 D. 42.5
Mathematics
Decide whether the limit exists. If it exists, find its value.Find
f(x).
A. -1 B. Does not exist C. 0 D. 1
Mathematics