Solve the problem.A circle has a circumference of 20? m. Find the radius of the circle.
A. 5 m
B. 20 m
C. 10 m
D. 3 m
Answer: C
Mathematics
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Using a parametric graph of the unit circle, find the function value.sin 
A. 0.9010 B. 0.4339 C. 0.4816 D. 2.0765
Mathematics
Write with rational exponents and then apply the properties of exponents. Assume that all radicands represent positive real numbers. Give answers in exponential form.
A. x7/2
B. 
C. 
D. 
Mathematics
Simplify.(6x6y5)(3x3y4)
A. 9x18y20 B. 9x9y9 C. 18x18y20 D. 18x9y9
Mathematics
Find the standard equation of the parabola that satisfies the given conditions. Vertex: (-2, -1); directrix: x = -4
A. (y + 1)2 = -8(x + 2) B. (x + 2)2 = -8(x + 1) C. (x + 1)2 = 8(y + 2) D. (y + 1)2 = 8(x + 2)
Mathematics