Solve the equation.|2m + 4| = -2
A. - 1, - 3
B. - 
, - 
C. 1, 3
D. empty set
Answer: D
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = 3ti + 
j + 
k; -9? t ? 7
A. -50 B. 400 C. 80 D. -10
Find the area.
A. 12,055.75 m2 B. 13,778 m2 C. 18,944.75 m2 D. 228.25 m2
Solve the problem.A certain rectangle's length is 5 feet longer than its width. If the area of the rectangle is 84 square feet, find its dimensions.
A. 7 ft by 12 ft B. 6 ft by 11 ft C. 8 ft by 13 ft D. 6 ft by 13 ft
Convert as indicated. If necessary, round to the nearest tenth of a degree.In a European cookbook, a recipe requires a mixture for candy to be heated to 
but the cook only has access to a Fahrenheit thermometer. Find the temperature in degrees Fahrenheit that should be used for making this candy.
A. 270.4°F B. 88.3°F C. 286.2°F D. 260.6°F