Solve the problem.y varies directly as x and inversely as the square of z. y = 110 when x = 90 and z = 3. Find y when x = 100 and z = 10.
A. 11
B. 110
C. 1358.02
D. 36.67
Answer: A
Mathematics
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If x = 2 tan ?, use trigonometric substitution to write 
as a trigonometric function of ?, where 
.
?
A. ?2 csc ? B. ?2 sec ? C. ?2 cos ? D. ?2 tan ? E. ?2 sin ?
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Write using radical notation. Then, simplify, if possible.
A. Cannot be simplified
B. 2
C. 
D. 21/7
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Find percent notation.0.98
A. 98% B. 0.098% C. 980% D. 9.8%
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