Sketch the vectors u and w with angle ? between them and sketch the resultant.
= 8, 
= 3, ? = 80°
A. 
B. 
Answer: A
Mathematics
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Solve by the addition method.x2 + y2 = 104x2 - y2 = 96
A. (-10, -2), (-2, -10) B. (10, 2), (-10, 2), (10, -2), (-10, -2) C. (10, 2), (2, 10), (-10, -2), (-2, -10) D. (10, -2), (10, 2)
Mathematics
Solve the equation.
(x + 6) = 
(x + 8)
A. -12 B. {3} C. 2 D. -2
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 
, x ? -3; g(x) = x2 + 3
A. Yes B. No
Mathematics
Find zw or 
as specified. Leave your answer in polar form.z = 6
w = 12
Find zw.
A. 36
B. 72
C. 36
D. 72
Mathematics