Solve. Write the fraction in simplest form.Alan walked 
mi to the store and then another 
mi to his friend's house. How far did he walk?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Answer: C
Mathematics
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Evaluate using the order of operations.-16.8 + 17.1 + (-11.8)
A. -11.5 B. 12.1 C. 22.1 D. 45.7
Mathematics
Find all the second order partial derivatives of the given function.f(x, y) = tan-1 (-3x + 4y)
A. fxx(x, y) = 
;
fyy(x, y) = 
;
fxy(x, y) = fyx(x, y) = 
B. fxx(x, y) = 
;
fyy(x, y) = 
;
fxy(x, y) = fyx(x, y) = 
C. fxx(x, y) = 
;
fyy(x, y) = 
;
fxy(x, y) = fyx(x, y) = 
D. fxx(x, y) = 
;
fyy(x, y) = 
;
fxy(x, y) = fyx(x, y) = 
Mathematics
Perform the requested operation or operations. Find the domain of each.f(x) = 3x + 2; g(x) = 3x - 5Find f/g.
A. (f/g)(x) = 
; domain {x|x ? - 
}
B. (f/g)(x) = 
; domain {x|x ? 
}
C. (f/g)(x) = 
; domain {x|x ? 
}
D. (f/g)(x) = 
; domain {x|x ? - 
}
Mathematics
Find the exact value. Do not use a calculator.sin 
A. 
B. 
C. 
D. 
Mathematics