Describe the trace of the surface given by the function below 
in the xz-plane.
?
A. circle
B. parabola
C. line
D. ellipse (not circle)
E. hyperbola
Answer: E
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Solve the problem. When needed, use 365 days per year and 30 days per month.An initial investment of $14,000 is appreciated for 7 years in an account that earns 7% interest, compounded semiannually. Find the amount of money in the account at the end of the period.
A. $21,895.38 B. $8661.72 C. $22,480.94 D. $22,661.72
Graph the ellipse.3x2 + y2 = 12
A. 
B. 
C. 
D. 
Multiply or divide and write scientific notation for the result.
A. 6 × 10-2 B. 3 × 10-16 C. 6 × 10-16 D. 3 × 10-2
Use the circle graph to solve the problem.A survey of the 2075 vehicles on the campus of State University yielded the following circle graph.
Together, what percent of the vehicles are either vans or convertibles?
A. 14% B. 5% C. 126% D. 23%