Which operation is NOT closed for polynomials?
1 answer:
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The area of rectangle with length l and width w is
If the length of rectangle is expressed as and the width of rectangle is expressed as
, then the area of rectangle is
Answer:
Addition Property of Equality
Step-by-step explanation:
So we had:
And then we got:
We did this by adding 2 to both sides of the equation. When we added 2, the left side cancelled and the right side equated to 9:
Since we added 2 to both sides, this is an example of the addition property of equality.
Answer:
x = ± 4
Step-by-step explanation:
given 3x² = 48 ( divide both sides by 3 )
x² = 16 ( take the square root of both sides )
x = ± = ± 4
x ∈ {- 4, 4 }
Answer:
- Length = 17 inches
- Width = 12 inches
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Step-by-step explanation:
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As it is given that, the length of a rectangle is 5 in longer than its width and the perimeter of the rectangle is 58 in and we are to find the length and width of the rectangle. So,
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Let us assume the width of the rectangle as x inches and therefore, the length will be (x + 5) inches .
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Now, <u>According to the Question :</u>
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Therefore,
- The width of the rectangle is 12 inches .
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Now, We are to find the length of the rectangle:
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Therefore,
- The length of the rectangle is 17 inches .
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