Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 8i - 4j, w = 2i - 6j
A. 35.7°
B. 104.5°
C. 92.0°
D. 45.0°
Answer: D
Mathematics
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Find projv u.v = 7i - 3j + k, u = -4j + 3k
A. - 
j + 
k
B. - 
j + 
k
C. 
i - 
j + 
k
D. 
i - 
j + 
k
Mathematics
Using synthetic division, determine whether the numbers are zeros of the polynomial.2i, -i, -3; f(x) = x3 + 3x2 + x + 3
A. No; no; yes B. Yes; yes; no C. No; yes; yes D. No; no; no
Mathematics
Plot the point in a polar coordinate system.(4, 30°)
A. 
B. 
C. 
D. 
Mathematics
Use the echelon method to solve the system of two equations in two unknowns.-7x + 30 = 9y 3x + 6y = 15
A. (2, 2) B. (3, 2) C. (3, 1) D. No solution
Mathematics