Add the numbers using the number line.-11 + 8.5
A. -2.5
B. -3.5
C. 3.5
D. 2.5
Answer: A
Mathematics
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Solve the equation by factoring.
= 
A. {6, -1} B. {36, -1} C. {6, 1} D. {36, 1}
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Determine whether the function satisfies a Laplace equation.f(x, y) = e-9y sin(-9x)
A. Yes B. No
Mathematics
Use Cramer's rule to solve the system of linear equations.7x - 7y = 358x + 4y = 88
A. (9, 4) B. (-8, -6) C. (-9, 4) D. No solution
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Find the dot product v ? w.v = -3i,
w = 5j
A. 
B. 0
C. 2
D. -15
Mathematics