Combine like terms.8
x + 2
x
A. 8
x
B. 11
x
C. 10
x
D. 9
x
Answer: C
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Determine what signs on values of x and y would make the statement true. Assume that x and y are not 0.- 
> 0
A. x and y must be negative. B. x and y must be positive. C. x and y have the same sign. D. x and y have different signs.
Convert to polar coordinates with 
and 
between 
and
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?
?(-41, -4
)
?
?
What will be an ideal response?
Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
+ 
A. 
B. 
C. 
D. 
Solve the problem.An object is traveling with a velocity (in feet per second) given by 
where t is time in seconds. Find the object's average velocity from 
to 
seconds.
A. 2110.5 ft/sec B. 707.0 ft/sec C. 1581.8 ft/sec D. 14,235.8 ft/sec