Find the angle between the given vectors, to the nearest tenth of a degree.u = 3i + 5j, v = 4i - 4j
A. 166°
B. 104°
C. 65°
D. 76°
Answer: B
Mathematics
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Add.(-7 + 3x6 + 5x4) + (5x6 + 5x4 - 2)
A. -2x6 + 8x4 + 3 B. 8 + 10x6 - 9x4 C. 8x6 + 10x4 - 9 D. 9x10
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
, -1 < t ? 1
A. 0.20
B. 
C. 
D. 
Mathematics
Find the area of the shaded region.
?
?
A. A = 21.3 sq units. B. A = 23.6 sq units. C. A = 19.9 sq units. D. A = 18.1 sq units.
Mathematics
Write the power of i as i, -1, -i, or 1.i8
A. -1 B. 1 C. -i D. i
Mathematics