Perform the desired operation. Write the answer in the form a + bi.(2 + 8i)(6 + 6i)
A. -36 + 60i
B. 48i2 + 60i + 12
C. 60 + 36i
D. -36 - 60i
Answer: A
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The graph of a one-to-one function f is given. Sketch the graph of the inverse function f-1, on the same set of axes. Use a dashed line for the inverse.
A. 
B. 
C. 
D. 
Find the foci and vertices of the ellipse.25x2 + 4y2 = 100
A. foci at (- 
, 0) and (
, 0)
vertices at (-5, 0), (5, 0)
B. foci at (0, - 
) and (0, 
)
vertices at (0, -5), (0, 5)
C. foci at (0, -5) and (0, 5)
vertices at (0, -25), (0, 25)
D. foci at (0, 5) and (2, 0)
vertices at (0, 25) and (4, 0)
Find the indicated cross product.v = 5i - 6j, w = 3i + 2j - 2kFind w × v.
A. -28i + 12j - 12k B. -12i - 10j - 28k C. -4i + 6j + 36k D. 10i + 12j - 28k
Graph the function. State whether it is increasing, decreasing, or constant..g(x) = 5x - 3
A. decreasing
B. increasing
C. increasing
D. decreasing