Find the acute angle, in degrees, between the lines.x - 
y = 7 and 
x - y = -11
A. 30°
B. 75°
C. 45°
D. 60°
Answer: A
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Rationalize the numerator of the fraction.
A. 
B. 
C. 
D. 
Find the common ratio for the geometric sequence.4, -12, 36, -108, 324, . . .
A. -3
B. -16
C. - 
D. 3
Solve the problem.The Earth rotates about its pole once every 24 hours. The distance from the pole to a location on Earth 8° north latitude is about 3921.5 miles. Therefore, a location on Earth at 8° north latitude is spinning on a circle of radius 3921.5 miles. Compute the linear speed on the surface of the Earth at 8° north latitude.
A. 163 mph B. 1027 mph C. 1080 mph D. 24,640 mph
Solve the problem.A small farm field is a square measuring 220 ft on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter?
A. 220 ft, 880 ft B. 880 ft, 1760 ft C. 440 ft, 1760 ft D. 440 ft, 880 ft