Find the exact value of the indicated trigonometric function of ?, if ? is an angle in standard position whose terminal side contains the given point.(-20, 48); Find sin ?.
A. 
B. - 
C. 
D. - 
Answer: C
Mathematics
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Describe the figure as completely as possible, using the properties simple, closed, polygonal curve, and polygon.
A. Closed, not simple B. Simple, not closed C. Polygon D. Simple, closed
Mathematics
If 
with B in QIV, find
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
State the dual problem. Use y1, y2, and y3 as the variables. Given: y1 ? 0, y2 ? 0, and y3
Minimizew = 6x1 + 3x2subject to:3x1 + 2x2 ? 22 2x1 + 5x2 ? 38 x1 ? 0, x2 ? 0
A.
| Maximize | z = 22y1 + 38y2 |
| subject to: | 3y1 + 2y2 ? 6 |
B.
| Maximize | z = 22y1 + 38y2 |
| subject to: | 3y1 + 2y2 ? 6 |
C.
| Maximize | z = 38y1 + 22y2 |
| subject to: | 2y1 + 3y2 ? 6 |
D.
| Maximize | z = 38y1 + 22y2 |
| subject to: | 2y1 + 3y2 ? 6 |
Mathematics
Solve the problem.A generator produces an alternating current according to the equation 
where t is time in seconds and I is the current in amperes. What is the smallest time t such that 
A. 
second
B. 
second
C. 
second
D. 
second
Mathematics