Determine the angle between u and v. Give the angle in degrees rounded to the nearest tenth of a degree.u = 7i - 9j, v = 4i + 2j

A. 29.4°
B. 88.7°
C. 78.7°
D. 39.4°


Answer: C

Mathematics

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A firm that makes an overly optimistic sales forecast is likely to have a:

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What will be an ideal response?

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Use the formula for Sn to find the sum for the geometric sequence.3, 

A.
B.
C.
D.

Mathematics