Determine the direction angle for the vector. Round to the nearest tenth of a degree.v = -12i + 5j
A. 157.4°
B. 22.6°
C. none of these
D. 112.6°
Answer: A
Mathematics
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Find the reciprocal.
A. 10
B. 
C. -10
D. -1
Mathematics
Find the general solution of the equation. Express the solution explicitly as a function of the independent variable.u'(x) = e7x-3u
A. u = 
ln
B. u = 
ln
+ C
C. u = 3 ln
+ C
D. u = 3 ln
Mathematics
Factor out the GCF from the polynomial.5t2 - 20t - 15
A. 5(t2 - 15t - 10) B. 5(t2 - 4t - 3) C. 5(t2 - 20t - 15) D. 5t(t2 - 4t - 3)
Mathematics
Give the prime factorization of the number. Use exponents when possible.415
A. 5 x 83 B. 52 C. 5 x 81 D. 52 x 83
Mathematics