Evaluate the expression for the given values. Expression your answer as a fraction unless otherwise indicated.
x = 7, y = 10
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the length of the curve.The curve r = 5 sin3 
, 0 ? ? ? 
A. 
(5? - 8)
B. 
(2? - 3
)
C. 
(5? - 9
)
D. 
(3
- ?)
Mathematics
Find the sum. Simplify when necessary.
+ 
A. 
B. - 
C. - 
D. 
Mathematics
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(9x
- 
)(
- 
)
A. 9x2 - 9x
- 
+ 10
B. 9x2 - 9x + 10
C. 9x2 - 8x
+ 10
D. 9x2 + 10
Mathematics
Solve the problem.Without graphing, determine the amplitude and period of the function 
A. Amplitude = 4
Period = 
B. Amplitude = 8
Period = 
C. Amplitude = 4
Period = 
D. Amplitude = 8
Period = ?
Mathematics