Help 8th grade math pls ;-;
1 answer:
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Answer:
15
Step-by-step explanation:
To find the y-intercept, just set the x value to 0:
Let the width be 
.
Therefore we know that the length
.
We know that area is
.
Therefore:
Now we can solve for the width.
We can use the quadratic formula from here where a = 2, b = -5 and c = 273.
Solving this gives us the possible answers of 13 and
. Since our width can't be negative, we know the answer is 13.
Next, we can plug 13 into the formula for area to find the length.
We now know the width and length. Finally, the last thing to do is calculate the perimeter using the formula
So, the perimeter of the rectangle is 68 yards.
Therefore we know that the length
We know that area is
Therefore:
Now we can solve for the width.
We can use the quadratic formula from here where a = 2, b = -5 and c = 273.
Solving this gives us the possible answers of 13 and
Next, we can plug 13 into the formula for area to find the length.
We now know the width and length. Finally, the last thing to do is calculate the perimeter using the formula
So, the perimeter of the rectangle is 68 yards.