Find the angle between u and v in radians.u = 7i - 9j - 5k, v = 9i + 6j - 7k

A. 0.28
B. 1.43
C. 1.57
D. 1.29

Answer: D

Mathematics

Combine like terms.24x - 5y + 7 - 3x - 5 - 3y

A. 21x - 2y + 2 B. -21x - 2y + 2 C. 21x - 8y + 2 D. -21x - 8y + 2

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Mathematics

Find the sum.100.72 + 92.22 + 32.567

A. 226.507 B. 225.507 C. 225.607 D. 225.517

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Mathematics

Identify the row operation that produces the resulting matrix. ?

A. R₁ + R₂ ? R₂
B. R₁ + R₂ ? R₂
C. R₁ + R₂ ? R₁
D. R₂ ? R₁

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Mathematics

Determine whether the number is divisible by 2, 3, 4, 5, 6, 8, 9, and/or 10.28,045

A. 2, 5, 10 B. 10 C. 5 D. 5, 10

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Mathematics