Find the center of the ellipse.9x2 + 36x + 25y2 - 250y + 436 = 0
A. (-7, 5)
B. (-2, 5)
C. (5, -2)
D. (5, -7)
Answer: B
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Find the exact values of the remaining trigonometric functions of ? from the given information.sin ? = - 
, ? in quadrant III
A. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
B. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
C. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
D. sin ? = - 
cos ? = - 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = 
Express the number in standard notation.8.208 × 10-6
A. 0.000008208 B. 0.00008208 C. -8,208,000 D. 0.0000008208
Solve.When a principal P earns an annual interest rate r compounded yearly, the amount A after t years is A = P(1 + r)t. How long will it take for a principal to double at 9% compounded annually? Round to the nearest whole year.
A. t ? 9 years B. t ? 7 years C. t ? 8 years D. t ? 5 years
Solve the problem.For a cone, the formula r = 
describes the relationship between the radius r of the base, the volume V, and the height h. Find the volume if the radius is 8 inches and the cone is 3 inches high. (Use 3.14 as an approximation for ?, and round to the nearest tenth.)
A. 1808.6 cu in. B. 201.0 cu in. C. 25.1 cu in. D. 67.0 cu in.