Solve the problem.If f(x) = 
and f(-3) = 9, what is the value of A?
A. A = -15
B. A = 43
C. A = -43
D. A = 15
Answer: C
Mathematics
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Solve the problem.Let u = 6i + j, v = i + j, and w = i - j. Find scalars a and b such that u = av + bw.
A. 6v + w B. 6v - w C. 3.500 v + 2.500w D. 0.2857 v + 0.4000 w
Mathematics
Find the phase shift of the function.y = 3 sin 
A. 
units to the left
B. 
units to the left
C. 
units to the right
D. 
units to the right
Mathematics
Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.10x
A. Monomial; variable x; coefficient 10; degree 1 B. Monomial,; variable x; coefficient 10; degree 0 C. Monomial, variable x; coefficient 1; degree 10 D. Not a monomial
Mathematics
Solve the equation.x2 + x + 8 = 0
A. 
B. 
C. 
D. 
Mathematics