Solve the problem.This year, a community recovered 26% of its municipal solid wastes through recycling, up from 17% when the recycling program first began five years ago. Let y represent the percentage recycled and x the number of years since the program began. Find a linear function that fits this data.
A. y = 1.8x + 24
B. y = 1.8x + 17
C. y = 0.9x - 17
D. y = -1.8x + 7
Answer: B
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = x ln (y - x)
A. 
= 
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= - 
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= 
B. 
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= - 
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= 
= 
C. 
= 
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= 
= 
D. 
= 
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= - 
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= - 
Mathematics
Solve the problem.Find the present value of the deposit. $13,000 at 5% compounded continuously for 10 years. Round to the nearest dollar.
A. $168,645 B. $157,706 C. $417,706 D. $7885
Mathematics
In the exercise below, the initial substitution of x = a yields the form 0/0. Look for ways to simplify the function algebraically, or use a table and/or graph to determine the limit. When necessary, state that the limit does not exist.
A. 0
B. 4
C. 
D. 
Mathematics
Add.-39 + (-8)
A. -47 B. -31 C. 31 D. 47
Mathematics