Use the given triangle and the following information: a =7 and b =3. Leave the answers in fraction form.





Find cos A.

Mathematics

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Solve the problem.There are 6 finalists in a singing competition. If a person guesses randomly the top three winners (in any order), what is the probability that they will guess correctly?

A.
B.
C.
D.  

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Mathematics

Change to the equivalent decimal.

A. 0.48 B. 4.8 C. 48 D. 0.21

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Mathematics

Decompose into partial fractions.

A.  + 
B.  + 
C.  + 
D.  + 

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Mathematics

Find a rectangular-coordinate equation for the curve by eliminating the parameter.

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Mathematics