Rationalize the denominator.
?
?
A. 
B. 
C. 
D. 
E. ?
Answer: E
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Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Solve the problem.The side of an equilateral triangle is 
shorter than the side of a square. The perimeter of the square is 
more than the perimeter of the triangle. Find the length of a side of the square.
A. 22 in. B. 23 in. C. 19 in. D. 24 in.
Find the indicated sum. Find the sum of the first 11 terms of the geometric sequence: 
, 
, 
, 
, 
, . . .
A. 
B. 409
C. 
D. 
Solve.While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 12 feet per second per second when the radius of the turn is 40 feet, find the acceleration the passengers feel when the radius of the turn is 160 feet.
A. 6 feet per second per second B. 4 feet per second per second C. 5 feet per second per second D. 3 feet per second per second