1) Area of trapezoid =1/2(base 1 +base 2)* height
1. Find the vertex, focus, directrix, and focal width of the parabola x^2 = 12y (1 point)
2 answers:
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If the length is twice the width, means length is : 
To find the area multiply the width and length :
. The air mattress' area is 
We should substract the air matress' field from the tent's : 
The answer is 32 square feet.
To find the area multiply the width and length :
From the picture, we can see the pair, bear in mind that terminal point pair is really the (x,y) pair or namely the (cosine, sine) pair, so we know what the cosine and sine are.
