Find the foci of the ellipse.9x2 - 72x + 25y2 - 200y + 319 = 0
A. (1, 4), (7, 4)
B. (4, 1), (4, 7)
C. (-1, 4), (9, 4)
D. (0, 4), (8, 4)
Answer: D
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Solve the problem.Shown is the image of a figure under the two successive translations that take P to P' and then P' to P''. Find the original figure. Note again, the given figure is the image after translation. Hint: First find the final image of a point if it were translated by both translations. Then what happens in the reverse process?
A. 
B. 
C. 
D. 
Solve for part in the problem. Round to the nearest hundredth, if necessary.5% of 200 gallons
A. 0.1 gal B. 10 gal C. 1 gal D. 100 gal
Solve the problem.The area of a circle is found by the equation A = ?r2. If the area A of a certain circle is 81? square centimeters, find its radius r.
A. 9 cm
B. 9? cm
C. {9 cm, -9 cm}
D. 9
cm
Room temperature is _____ 
.
A. 41 B. 30 C. -22 D. 20