Solve the system of equations using substitution.
A. x = -5, y = -1; x = 
, y = 8
B. x = 5, y = 1; x = - 
, y = -8
C. x = 5, y = 1; x = -8, y = - 
D. x = -5, y = -1; x = 8, y = 
Answer: C
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Solve the problem.For the surface z = f(x,y), show that the surface integral 
d? = 
dxdy.
What will be an ideal response?
Find the modified quota asked for. Round your answer to two decimals.A small country consists of seven states; there are 156 seats in the legislature that need to be apportioned among the seven states; and the population of each state is shown in the table. 
Find the modified quota for state F using the divisor 92.
A. 27.93 B. 28.16 C. 27.29 D. 26.44
Graph.g(x) = -2x2 + 3
A. 
B. 
C. 
D. 
Find the exact values of the remaining trigonometric functions of ? from the given information.sec ? = - 
, tan ? > 0
A. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
B. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
C. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
D. sin ? = - 
cos ? = - 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = 