Find the unit vector having the same direction as v.v = -4j

A. u = - j
B. u = -4j
C. u = -j
D. u = 16j

Answer: C

Mathematics

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Evaluate the integral.

A. sec23x tan 3x + ln + C
B. sec 3x tan 3x + ln + C
C. sec 3x tan 3x - ln + C
D. sec 3x tan 3x +  + C

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Mathematics

Multiply.315 × 7

A. 2205 B. 2215 C. 2305 D. 2105

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Mathematics

Find the amount of premium retained by the company and the amount of refund to the insured using proration.Annual premium: $4129Months in force: 9

A. $3089.25, $1039.75 B. $3096.75, $1032.25 C. $2752.67, $1376.33 D. $3440.83, $688.17

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Mathematics

Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = i - 4j, w = -2i + j

A. v1 = - (-2i + j), v2 = i - j
B. v1 = - (-2i + j), v2 = i - j
C. v1 = - (-2i + j), v2 = - 2i - j
D. v1 = - (-2i + j), v2 = - i - j

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Mathematics