sarahsompayrac
19.03.2020 •
Mathematics
The slope of the line that contains the points (2, -7) and (-2,5) is
-3. What is the y-intercept?
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Ответ:
The y-intercept is -1.
This is because if you plug in the coordinates into the equation y=3x, you have to minus one after it to fit the equation.
Ответ:
so let all sides are x inches
perimeter=9 in.
x+x+x=9
3x=9
x=9/3
x=3 in.
so area of triangle=squareroot3/4×side^2
area=squareroot3/4×3^2
=squareroot3/4×9
so area is squareroot3/4×9 square in