Solve the problem. Round your answer to the nearest tenth.Find the work done by a force of 200 pounds acting in the direction  in moving an object 75 feet from (0, 0) to (-75, 0).

A. 13,416.1 ft-lb
B. 15,000.0 ft-lb
C. 6708.2 ft-lb
D. 8944.9 ft-lb


Answer: C

Mathematics

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A hypothesis test is to be performed. State the null and alternative hypotheses.Last month the mean waiting time at a bank was 8.4 minutes. The manager has installed a new computer system and claims that people will no longer have to wait as long.

A. Null hypothesis: mean waiting time < 8.4 minutes   Alternative hypothesis: mean waiting time = 8.4 minutes B. Null hypothesis: mean waiting time = 8.4 minutes   Alternative hypothesis: mean waiting time < 8.4 minutes C. Null hypothesis: mean waiting time > 8.4 minutes   Alternative hypothesis: mean waiting time < 8.4 minutes D. Null hypothesis: mean waiting time = 8.4 minutes   Alternative hypothesis: mean waiting time ? 8.4 minutes

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The terminal side of ? in standard position contains the given point. Find the values of the six trigonometric functions of ?.(-4, -3)

A. sin ? = - 
cos ? = - 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = 
B. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
C. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
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cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 

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A. x40/3 B. x120 C. x3/3 D. x13/3

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Write the digit for the given place value in the whole number.7139hundredsones

A. hundreds 1 ones 9 B. hundreds 3 ones 9 C. hundreds 1 ones 3 D. hundreds 7 ones 1

Mathematics