Translate the percent equation into an English sentence.13% ? y = 90
A. What number is 13% of 90?
B. What percent of 90 is 13?
C. 13% of what number is 90?
D. 13% of 90 is what number?
Answer: C
Mathematics
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Rationalize the denominator of each fraction.
A. 
B. 
C. 
D. 
Mathematics
Find the domain and the range of the function.
A. D: (-?, 0]; R: (-?, 0] B. D: [0, ?); R: (0, ?) C. D: [0, ?); R: [0, ?) D. D: (-?, ?); R: (-?, ?)
Mathematics
Find an upper bound for the magnitude |E| of the error in the linear approximation L to f at the given point over the given region.
at 
R: |x - 1| ? 0.1, |y + 2| ? 0.1, |z - 3| ? 0.1
A. |E| ? 0.48 B. |E| ? 0.36 C. |E| ? 0.54 D. |E| ? 0.72
Mathematics
Solve the problem. Round to the nearest tenth, if necessaryFind the percent if the part is 2.5 and the whole is 4.5.
A. 5.6% B. 55.6% C. 27.8% D. 180%
Mathematics