Simplify the expression. If the expression contains any variables, assume that they represent positive real numbers. Write your answer with only positive exponents.
A. 
B. 
C. 817p
D. 
Answer: B
Mathematics
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = 6 cos ?
A. C(3, 0), radius = 3
B. C
, radius = 3
C. C
, radius = 6
D. C(6, 0), radius = 6
Mathematics
Solve the inequality. Write the solution set in interval notation.(x + 4)(x + 3)(x - 9) > 0
A. (-4, -3) ? (9, ?) B. (9, ?) C. (-?, -3) D. (-?, -4) ? (-3, 9)
Mathematics
Multiply and simplify.
? 
A. 5m
B. 
C. 
D. 10
Mathematics
Solve. Graph the solution on a number line, and express it in interval notation.12x + 9 > 3(3x - 3)
A. x ? -6, (-?, -6]
B. x < -6, (-?, -6)
C. x > -6, (-6, ?)
D. x ? -6, [-6, ?)
Mathematics