Find the exact value of the expression using the provided information.Find cos(s + t) given that cos s = 
, with s in quadrant I, and sin 
with t in quadrant IV.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find f"(x) for the function.f(x) = 
4
A. 
2 + 
3
B. - 
2 + 
3
C. 12 
2
D. - 
3
Mathematics
Solve the problem.The graphs below represent the supply and demand for a product at various prices per unit. How many units should be produced so that supply equals demand?
A. 42,900 units B. 2250 units C. 28.6 units D. 2255 units
Mathematics
Solve. Give exact solutions.x2 + 4x + 4 = 28
A. -2 + 2
, -2 - 2
B. 2
- 2, 2
+ 2
C. 2
, -2
D. -2 + 2
, -2 - 2
Mathematics
Use addition of y-coordinates to sketch the graph of the function between 
and 
.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics