Solve the problem.If s varies directly as t2, and 
when 
find s when t is 9.
A. s = 54
B. s = 36
C. s = 486
D. s = 324
Answer: C
Mathematics
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Solve the equation.t - 9 = 15
A. t = 24 B. t = -24 C. t = -6 D. t =6
Mathematics
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Simplify the fraction.
?
?
Assume that denominator is not 0.
?
A. ?
B. ?
C. 
D. ?
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics