Solve the problem.A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius of 9 ft. How far does the skater go in tracing the figure eight?(Use 3.14 for ? .)
A. 28.26 ft
B. 113.04 ft
C. 26.26 ft
D. 56.52 ft
Answer: B
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Find the length of the curve.The spiral r = 2?2, 0 ? ? ? 2
A. 
?5
B. 
((?2 + 1)3/2 - 1)
C. 
D. 
Find the linear approximating polynomial for the function centered at a.f(x) = 
, a = 27
A. L(x) = 
x + 1
B. L(x) = 
x + 2
C. L(x) = 
x + 6
D. L(x) = 
x + 1
Provide an appropriate response.In multiplying two monomials, you use (but do not always show) the commutative and associative properties. In each line below, name the property that has been used.(-9x3)?(4x5)= (-9x3? 4)x5_____________= (-9 ? 4 ? x3)x5_____________= (-9 ? 4)(x3 ? x5) _____________= -9 ? 4 ? x8
What will be an ideal response?
Identify the quadrant in which the point is located.(4, 20)
A. Quadrant I B. Quadrant II C. Quadrant IV D. Quadrant III