Solve the problem.During a storm in Anchorage, Alaska, the temperature was 6°F at noon. Then it dropped 2°F each hour for the next 3 hours, followed by an additional drop of 4°F the fourth hour. What was the temperature at 4 P.M.?
A. 4°F
B. -4°F
C. -2°F
D. -5°F
Answer: B
Mathematics
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Solve the problem.Find the work done by a force of 13i (newtons) in moving as object along a line from the origin to the point 
(distance in meters).
A. 91
joules
B. 91 joules
C. 13
joules
D. 64.35 joules
Mathematics
Find the area of the region specified in polar coordinates.The smaller loop of the curve r = 4 + 8 sin ?
A. 4(2? - 3
)
B. 8(2? + 3
)
C. 8(2? - 3
)
D. 4(2? + 3
)
Mathematics
Find the limit.
A. 0 B. -? C. ? D. -1
Mathematics
For the given polar equation, write an equivalent rectangular equation. 7r cos ? + 8r sin ? = 1
A. 7x + 8y = x2 + y2
B. 7y + 8x = 1
C. 
+ 
= 1
D. 7x + 8y = 1
Mathematics