Find the maximum or minimum value of the given objective function of a linear programming problem. The figure illustrates the graph of feasible points. 
z = -5x - y. Find maximum.
A. maximum: -22
B. maximum: -18
C. maximum: -15
D. no maximum
Answer: C
Mathematics
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For a given circle, tangent 
is drawn from external point E so that point T is the point of tangency. Where E-R-S, secant 
intersects that circle at points R and S. Find an expression that is equivalent to 
.
What will be an ideal response?
Mathematics
A piece of machinery valued at $38,000 depreciates at a rate of 7% yearly. How long will it take until it has a value of $19,000? Please round the answer to the nearest tenth.
A. 11.9 years B. 14.9 years C. 12.9 years D. 9.9 years E. 8.9 years
Mathematics
Compute the difference. Express answer in simplest form.
- 
A. 
B. 
C. 
D. 
Mathematics
Find the radius of convergence and the interval of convergence of the power series. \ Select the correct answer.
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Mathematics