Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. 
B. ?
C. {(-1, 0)}
D. {(5, -4)}
Answer: B
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The circulation M, in thousands, of a certain magazine t years after 2010 is given by
?
.
This formula is valid over the period from 2010 to 2015 only.A: Make a graph of M versus t.B: There are two values of t that have a circulation of 9 thousand. Find both of them.C: Explain in practical terms what is happening to magazine sales over the period from 2010 to 2015.
?
Round your answer to two decimal places if necessary.
?
What will be an ideal response?
Use an increment of 0.3 to estimate the value of 
at 
if 
varid="variable_id_field" variablename="impvar_5eeb0d5e09644576a0fd33444" />. Round your answer to two decimal places. ? A. -0.13 B. -0.04 C. 0.00 D. None of the above
Solve the problem.Find the area of a square piece of cardboard for which the length of the side is 
A. 104 sq cm
B. 832 sq cm
C. 64 
sq cm
D. 10,816 sq cm
Simplify the expression. Assume that variables represent nonzero numbers.(rs)9
A. 9rs B. r10s10 C. rs9 D. r9s9