Divide, if possible.

A.  
B. -3
C. -7
D. 7


Answer: D

Mathematics

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Solve the problem.The numbers 1 through 13 are each written on the same size sheet of paper and placed in a bag. You then select one sheet of paper at random from the bag. What is the probability of choosing a 7 from the bag?

A.
B.
C.
D.  

Mathematics

Solve the problem. Round to the nearest tenth unless indicated otherwise.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of   is needed to keep an  car traveling at 20 mph from skidding on a curve of radius  what force would be required to keep the same car from skidding on a curve of radius 

src="https://sciemce.com/media/4/ppg__refe0512191816__f1q57g4.jpg" alt="" style="vertical-align: -4.0px;" /> at  Round your answer to the nearest pound of force.

A. 20,962 lb
B. 21,664 lb
C. 21,126 lb
D. 21,094 lb

Mathematics

Simplify.92 - 2 ? 3 ? 4

A. 83 B. 344 C. 68 D. 1080

Mathematics

Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.

A. function B. not a function

Mathematics