Yo plz help me with this 50 points
The Area of a rectangle is 3x^2 + 9x square inches. The length of the rectangle is 3x inches.
What is the width of the rectangle?
1. Explain how you find the area of a rectangle.
2. Explain how you find the width of a rectangle given the Area and the length.
3. Show you work and solve for the width of this rectangle.
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Answer:
the width of the rectangle is x+3 inches.
1. if you know the value of x, then substitute it in the quadratic equation to find out the area of the rectangle
2. since area and length of the rectangle is given, divide them to find the width of the rectangle
3. area of rectangle=l×b
3x²+9x=(3x)×b
3x(x+3)=(3x)×b
[(3x)(x+3)]/(3x)=b
b=x+3
hope you are okay with my answer.
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