Solve the problem.If u = -7i - 2j and v = 5i + 7j, find u - v.
A. -13i + 5j
B. -14i + 5j
C. -2i + 5j
D. -12i - 9j
Answer: D
Mathematics
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Perform the indicated operation.
? 
A. 
B. x - 4
C. x + 4
D. 
Mathematics
The graph of a trigonometric function of the form y = A sin (Bx) or y = A cos (Bx) for B > 0 is given. Determine the equation of the function represented by the graph.
A. y = 3 sin 
x
B. y = 3 sin 4x
C. y = 4 sin 3x
D. y = 4 sin 
x
Mathematics
Solve by using the quadratic formula.x2 + 12x + 13 = 0
A. -12 + 
B. 6 ± 
C. -6 ± 
D. 6 + 
Mathematics
Choose a natural number between 1 and 100, inclusive. What is the probability that the number chosen is not a multiple of 5? ?
A. 
B. 
C. 
D. 
E. 
Mathematics