Find the Foci of the conic.
?
?
A. Foci: 
B. Foci: 
C. Foci: 
D. Foci: 
E. Foci: 
Answer: A
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Solve the problem.A water trough has a semicircular cross section with a radius of 0.25 m and a length of 5 m (see figure). How much work is required to pump water out of the trough when it is full? Round to two decimal places when appropriate.
A. 12,250 J B. 255.21 J C. 61,211.72? J D. 510.42 J
Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
Find the increase in the number of male athletes from 2002 to 2004.
A. 125 B. 150 C. 175 D. 275
Solve the problem.Coyotes are one of the few species of North American animals with an expanding range. The future population of coyotes in a region of Mississippi can be modeled by the equation 
, where t is time in years. Use the equation to determine when the population will reach 140. Round to the nearest tenth when necessary.
A. 9101.9 years B. 12 years C. 11.7 years D. 11.8 years
Solve the inequality graphically, numerically, or symbolically, and express the solution in interval notation. Where appropriate, round to the nearest tenth. ?r + 6? < 2
A. (4, 8) B. (-8, -4) C. (-?, 4) ? (8, ?) D. (-?, -8) ? (-4, ?)