Divide.

A. 5x2 + 5x + 10
B. 5x2 + 5x - 10
C. 5x2 - 5x + 10
D. 5x2 + 6x + 10


Answer: A

Mathematics

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Find the indicated probability.A relative frequency distribution is given below for the size of families in one U.S. city.  SizeRelative frequency20.44230.22740.19650.09260.0267+0.017A family is selected at random. Find the probability that the size of the family is less than 5. Round your answer to three decimal places.

A. 0.423 B. 0.865 C. 0.515 D. 0.092

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Add and simplify. +  

A.
B.
C.
D.

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Find the value of the constant k so that the function is a probability density function in the indicated interval. ? ?

A.
B. ?
C. ?
D. ?
E. ?

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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.csc ? = -, cos ? > 0Find cos .

A.  
B. - 
C.  
D. - 

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