Let x be the initial width, then the initial length is x+20.
<span>If Elise decreases this length by 8 feet, she will get the new length x+20-8=x+12.
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If Elise increases the width by 10 feet, <span>she will get the new width x+10.
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</span><span>The new perimeter will be x+12+x+12+x+10+x+10=4x+44=172, 4x=172-44, 4x=128, x=128÷4, x=32.
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</span><span>The initial width is 32 ft and the initial length is 32+20=52 ft.
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</span><span>The new width will be 32+10=42 ft, the new length will be 32+12=44 ft.
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Triangle, not a triangle, not a triangle, triangle
Determining if three side lengths can make a triangle is easier than it looks. All you have to do is use the Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side. If this is true for all three combinations of added side lengths, then you will have a triangle.[
Answer:
sorry my brian aint working
Step-by-step explanation:
Answer:
and 
Step-by-step explanation:
The given ellipse has equation:
.
The center of this ellipse is (h,k)=(0,2)
We use the equation:
to determine the foci.
The directrices are given by 


and 
The equation of the directrices are:
and 
The correct answer is D