Evaluate the expression without using a calculator.2561/4
A. 16
B. 1024
C. 64
D. 4
Answer: D
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Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set.7x + 8y = -565x + 2y = -14
A. {(0, -6)} B. Cramer's rule does not apply since D = 0; ? C. {(-1, -6)} D. {(0, -7)}
Solve the problem.The graph of a function is given below. Tell whether the graph could possibly be the graph of a polynomial function. If it could be the graph of a polynomial function, tell which of the following are possible degrees for the polynomial function: 3, 4, 5, 6.
A. yes; 4 only B. yes; 3, 5 C. no D. yes; 3 only
Graph the ellipse and locate the foci.16x2 + 9y2 = 144 
A. foci at (5, 0) and (-5, 0)
B. foci at (0, 
) and (0, -
)
C. foci at (
, 0) and (-
, 0)
D. foci at (4, 0) and (-4, 0)
Solve.A total of 5 gal 3 qt of oil has been removed from a 45-gallon drum. How much oil still remains in the container?
A. 39 gal 1 qt B. 40 gal 3 qt C. 40 gal 1 qt D. 39 gal 5 qt