Use the formula .Given , and

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A.
B.
C.
D.
E.

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Answer: C

Mathematics

Multiply.(-3.65)(3.88)

A. -1.4162 B. -141.62 C. -0.14162 D. -14.162

Find the angle between u and v in radians.u = -4i + 10j - 9k, v = 9i + 8j - 2k

A. 0.37 B. 1.57 C. 1.39 D. 1.20

Write as a decimal.50%

A. 0.39 B. 5 C. 0.05 D. 0.5

Find the real zeros, if any, of each quadratic function using the quadratic formula. List the x-intercepts, if any, of the graph of the function. f(x) = 4x2 - 25x - 21

A. x = - , x = 14
B. x = - , x = 7
C. x = -3, x = 7
D. x = , x = -7