Answer:
A.
Step-by-step explanation:
The given equation is
We solve for y by subtracting 3x from both sides to obtain;
We now divide through by -7 to get;
This simplifies to;
This equation is now in the form y=mx +c, where is the slope.
Five times a number ,subtracted from. Four is triple the number find the number
1 answer:
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Answer:
See below.
Step-by-step explanation:
The question doesn't ask you to find the area, it just ask for the expression that represents the area.
The area of rectangle is A=bh, where b and h are each of the side lengths.
Since we know the sides are (2x+7) and (5x+9), this means that the expression for the area of the rectangle is:
To find the degree and classification, expand the factors:
Thus, this is a second degree quadratic expression
And from Part A, when we multiplied (2x+7)(5x+9), we got another polynomial (10x^2+52x+63). Thus, this rerepresents the closure property of polynomials, where multiplying a polynomial by another gets another polynomial.
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