Solve the equation.

Mathematics

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Solve the inequality. Graph your solution on a number line, and write your solution in interval notation. 9x + 5 ? -22 or 9x + 5 ? 14

A. (-?, 1]
 
B. (-?, -3] ? [1, ?)
 
C. [-3, 1]
 
D. [-3, ?)
 

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Mathematics

Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 7 + 3

A. 10
B. 7 + 3
C. 10
D. 21

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Mathematics

Solve the problem.A generator produces an alternating current according to the equation  where t is time in seconds and I is the current in amperes. What is the smallest time t such that 

A.  sec
B.  sec
C.  sec
D.  sec

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Mathematics

Find the standard form of the equation of the ellipse with the given characteristics. ? foci: , endpoints of the major axis:  ?

A.
B.
C.
D.
E.

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Mathematics