Subtract.
- 
A. undefined
B. - 
C. 0
D. 
Answer: C
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Solve the problem.A researcher interested in Cleansburg citizens' attitudes toward a revitalized downtown area surveys a randomly selected group of 200 downtown office workers. 66% of those surveyed indicated they are in favor of revitalizing the downtown area. The researcher concluded that "about two thirds of the people in Cleansburg are in favor of revitalizing the downtown area." This conclusion might be invalid because
A. there was no control group. B. the size of the sample is too small. C. 66% is not exactly two thirds. D. the sample is not representative of the population. E. none of these
Provide an appropriate response.A section of a hip roof is a trapezoid measuring 40 ft at the bottom, 15 ft at the top, and 12 ft high. Find the area of this section of the roof in square feet.
A. 240 ft2 B. 660 ft2 C. 600 ft2 D. 330 ft2
Solve the problem.An arrow is fired into the air with an initial velocity of 128 feet per second. The height in feet of the arrow t seconds after it was shot into the air is given by the function 
Find the maximum height of the arrow.
A. 256 ft B. 768 ft C. 64 ft D. 448 ft
Solve.A 22-foot ladder is leaning against a house with the base of the ladder 6 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth of a foot.
A. 22.8 ft B. 21.9 ft C. 16 ft D. 21.2 ft