Solve.A whispering gallery is a room in the shape of an elliptic reflector. If a source of sound is placed at one focal point of an elliptic reflector, the sound is reflected through the other focal point. If one person speaks at one focal point, then another person at the other can hear sounds as faint as a whisper. If the whispering gallery is based on the ellipse 
+ 
= 1, how many units from the center of the ellipse would the two people stand?
A. 15 units
B. 9 units
C. 12 units
D. 144 units
Answer: C
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You sell earrings for $6.33 each. You paid $57.21 for supplies to make the earrings. Which of the following is a correct formula for the profit P, in dollars, you make from making and selling E earrings? ?
A. 
B. ?
C. ?
D. ?
At what points is the given function continuous?f(x, y) = 
A. All (x, y) satisfying x - y ? 0
B. All (x, y) such that x ? 
and x ? -2
C. All (x, y) such that x ? 0
D. All (x, y)
Find the standard quota asked for. Round your answer to two decimals.The faculty senate of a university has 55 senators to be apportioned among its four colleges based on the number of faculty in each college. The colleges are Liberal Arts (L), Sciences (S), Business (B), and Engineering (E). The number of faculty in each college is shown in the following table. 
Find the standard quota for the College of Sciences.
A. 14.26 B. 15.96 C. 17.53 D. 19.94
Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.cos4 x
A. 
B. 
C. 
D. 