12. The roots of a quadratic are x = -5 and x = 3.
1 answer:
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Answer:
i^32=1
i^25=i
i^86=-1
i^51=-i
Step-by-step explanation:
Follow the Rule of Four of I for this,
i^1=
I^2=-1
I^3=-i
I^4=1
The length of the rectangle is 14 feet and the width of the rectangle is 9 feet.
The length of a rectangle is 5 more than the width. The area is 126 square feet.
We need to find the length and width of the rectangle.
<h3>What is the area of a rectangle?</h3>The area of a rectangle is calculated by multiplying the rectangle's length by its width.
Let the width of the rectangle be x, then the length of the rectangle be x+5.
We know that the area of the rectangle = Length×Width
Now, the area of the rectangle = (x+5)×x=126 square feet.
⇒
⇒
⇒
⇒.
Since length cannot be a negative integer.
So, Width=9 feet and Length=9+5=14 feet.
Hence, the length of the rectangle is 14 feet and the width of the rectangle is 9 feet.
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