Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (0, 
) and (0, -
)
B. foci at (4, 0) and (-4, 0)
C. foci at (5, 0) and (-5, 0)
D. foci at (
, 0) and (-
, 0)
Answer: A
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A rectangle has perimeter 14 m. Express the area of the rectangle as a function A(I) of the length I of one of its sides.
What will be an ideal response?
Provide an appropriate response.Simplify and express your answer in terms of positive exponents: 
What will be an ideal response?
Read the method of solving the system of equations.
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?
?
Solving the first equation for y, we have 
. Substituting this value of y into the second equation, we have
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The equation is quadratic. We write it in standard form and apply the quadratic formula.
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Use the method shown above to solve the system of equations.
?
?
A. ?
B. ?
C. 
D. ?
E. ?
Multiply. Write the answer as a mixed number as needed.1
× 
× 
A. 
B. 
C. 
D. 