The circle in the figure has a radius of r and center at C. The distance from A to B is x.
?
?
If 
and 
, find x.
?
Round the answer to the nearest whole number.
?
A. 10
B. 17
C. 13
D. 12
E. 15
Answer: C
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Find the product, if possible. 
A. 
B. 
C. 
D. Not defined
Find the eccentricity e of the hyperbola.x2 - 25y2 = 25
A. 
B. 
C. 
D. 2
Write interval notation.{x? x ? 3}
A. (-?, 3) B. [3, ?) C. (-?, 3] D. (3, ?)
Pack-Em-In Real Estate is building a new housing development. The more houses it builds, the less people will be willing to pay, due to the crowding and smaller lot sizes. In fact, if the company builds 60 houses in this particular development, it can sell them for $160,000 each, but if it builds 70 houses, it will be able to get only $150,000 each. What is the largest possible revenue the company can get? Round your answer to the nearest dollar. ?
A. $11,000,000 B. ?$11,856,000 C. ?$363,000 D. ?$12,100,000 E. ?$12,226,000