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2 answers:
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Answer:
r= 7.14 (rounded to 2 decimal places)
Step-by-step explanation:
We have to solve this equation for the value of r. We will use distributive property and basic algebra to solve this.
Distributive property is a(b+c) = ab + ac
Now, the steps of solving are shown below:
Hence, value of r is 7.14 (rounded to 2 decimal places)
The polynomials are closed under subtraction when polynomial 5x − 6 is subtracted from is
will be a polynomial.
Polynomial is an algebraic expression that can involve variables with nonnegative integer terms and constants.
Given
Polynomial 5x -6 and .
Similar terms are terms having the same variables with the same degree.
- When we subtract polynomials, we combine like terms: 3x² is the only x² term.
- We have -6x and subtract 5x from it; this gives us -11x.
- We have 2 and subtract -6 from it; when we subtract a negative, we add the opposite, which means we have 2--6=2+6=8.
Therefore,
The polynomials are closed under subtraction when polynomial 5x − 6 is subtracted from 3x2 − 6x+ 2 is;
Hence, the polynomials are closed under subtraction when polynomial 5x − 6 is subtracted from is
will be a polynomial.
To know more about Polynomial click the link given below.