Use a commutative property to complete the statement.5 + x =
A. x - 5
B. x + 5
C. 5 - x
D. -x - 5
Answer: B
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In electrical circuits, the impedance Z (or opposition to the flow of electricity), voltage V, and current I can all be represented by complex numbers. They are related by the equation Z = 
. Use this equation to find the value of the missing variable.I = 2 + 8i, Z = 4 - 2i
A. V = - 
- 
i
B. V = 8 - 16i
C. V = -8 + 28i
D. V = 24 + 28i
Determine the row operation that was used on the first matrix to obtain the second matrix.
, 
What will be an ideal response?
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.2i, 
A. f(x) = x4 - 1x2 - 12 B. f(x) = x4 + 1x2 - 12 C. f(x) = x4 - 2x2 + 12 D. f(x) = x4 + 2x2 + 12
Solve the problem.A closed box with a square base has to have a volume of 18,000 cubic inches. Find a function for the surface area of the box.
A. S(x) = 2x2 + 
B. S(x) = 2x2 + 
C. S(x) = 2x2 + 
D. S(x) = x2 + 