Refer to right triangle ABC with 
.
?
?
?
If 
and 
yd, find a.
?
Round the answer to the nearest hundredth.
?
A. 8.79 yd
B. 8.85 yd
C. 8.81 yd
D. 8.75 yd
E. 8.77 yd
Answer: A
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Write the equation of the circle with the given center and radius.Center (0, 9), radius 
A. (x + 9)2 + y2 = 225 B. x2 + (y - 9)2 = 15 C. x2 + (y + 9)2 = 15 D. (x - 9)2 + y2 = 225
Solve the problem.Health care issues are receiving much attention in both academic and political arenas. A sociologist recently conducted a survey of senior citizens whose net worth is too high to qualify for Medicaid but who have no private health insurance. The ages of 25 uninsured senior citizens were as follows:
Find the median of the observations.
A. 72 B. 72.5 C. 69 D. 68 E. 73
Find an equation for the ellipse described.Focus at (-4, 0); vertices at (±8, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1