Find the sum.-10 + 21
A. -11
B. -31
C. 11
D. 31
Answer: C
Mathematics
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Mathematics
Express as a difference of logarithms.log b 
A. log b 4 - log b w B. log b - log w C. log b w - log b 4 D. log b 4 ÷ log b w
Mathematics
Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. No x-intercepts, y-intercept: 
;
B. No x-intercepts, y-intercept: 
;
C. x-intercept: 
, no y-intercepts ;
D. x-intercept: 
, no y-intercepts ;
Mathematics
Evaluate the expression. Write your answer without negative exponents.(-5)-2
A. 
B. 25
C. - 
D. -25
Mathematics