Find the magnitude and direction angle for the following vector. Give the direction angle as an angle in [0°, 360°) rounded to the nearest tenth.
A. 8, 0°
B. -8, 0°
C. -8, 180°
D. 8, 180°
Answer: D
Mathematics
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Solve.-x = -2
A. -2 B. -1 C. 2 D. 0
Mathematics
Solve the given equation for the indicated variable.V = 
Bh for B
A. B = 
B. B = 
C. B = 
D. B = 
Mathematics
Factor completely, or state that the polynomial is prime.x4 + 16x2 - 225
A. (x + 3)(x - 3)(x2 + 25) B. (x2 - 9)(x2 + 25) C. (x + 3)(x - 3)(x + 5)(x - 5) D. (x - 3)2(x2 + 25)
Mathematics
Convert to radical notation and simplify.a4/5b-1/5
A. 
B. - 
C. 
D. 
Mathematics