Find the equation of the circle.
A. x2 + y2 = 5
B. x2 + y2 = 10
C. x2 + y2 = 9
D. x2 + y2 = 25
Answer: D
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Determine the symmetries of the curve.r = 2 + 3 cos ?
A. Origin only B. x-axis only C. y-axis only D. No symmetry
Perform the indicated operations.5(4x + 4y)(4x - 7y)
A. 80x2 - 60xy - 140y2 B. 40x2 - 285xy - 140y2 C. 80x2 - 60xy - 4y D. 40x2 - 60xy - 140y2
Solve the problem.Which has a lower present value: $30,000 if interest is paid at a rate of 5.98% compounded continuously for 5 years, or $33,000 if interest is paid at a rate of 3.3% compounded continuously for 65 months?
A. Both investments have the same present value. B. $33,000 with interest is paid at a rate of 3.3% compounded continuously for 65 months has a lower present value. C. $30,000 with interest paid at a rate of 5.98% compounded continuously for 5 years has a lower present value.
Write the ratio in lowest terms.50 : 90
A. 
B. 
C. 
D. 