Use Identities to find the exact value.cos 255°
A. 
B. 
- 
C. 
- 
D. 
Answer: A
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For the given point, determine the point that is symmetric with respect to the y axis.
?
?
A.
B.
C.
D.
E.
Plot the parametric surface over the indicated domain.r(u, v) = u2sin vi + ucos vj + 4uk; 0 ? u ? 2?, 0 ? v ? 2?
A. 
B. 
C. 
D. 
Determine the indefinite integral. Check your work by differentiation.
dx
A. 
- 
- 
+ C
B. 
- 
- 
+ C
C. 
- 
+ 
+ C
D. -5x4 - 5x5 + C
Solve.Jessie, Kiran, and Matt can process 430 telephone orders per day. Jessie and Kiran together can process 283 orders, while Jessie and Matt together can process 280 orders per day. How many orders can each person process alone?
A. Jessie: 129; Kiran: 150; Matt: 151 B. Jessie: 133; Kiran: 158; Matt: 139 C. Jessie: 138; Kiran: 145; Matt: 147 D. Jessie: 133; Kiran: 150; Matt: 147