We need to first find the diagonal that moves along the base.
a²+b²=c²
12²+8²=c²
c²=208
c=√208
Now we have find the length for the answer.
(√208)²+14²=c²
c²=208+196
c²=404
c= 20.10 cm approx.
answer: C
Important: If you're discussing squares, please express "the square of x" as x^2 (not as x2).
Please note that your y=x^2+3 is NOT a line. I will assume (probably incorrectly!) that you meant y=2x+3. The slope of this line is 2, so the slope of any line perpendicular to y=2x+3 is -1/2.
Now use the point-slope equation of a straight line:
y-8 = (-1/2)(x-1) (answer)
The square root of 100 is 10. The drawing must be 10 cm by 10 cm.
1 cm = 2 ft, so 10 cm must equal 20 feet.
20 * 20 = 400 square feet
:)
The answer is d
hope this helped!!
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