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2 years ago

8

Write a function rule for the area of a rectangle with a length of 2 ft less than three times its width. What is the area of the

rectangle when it's width is 2 ft.

1 answer:

spin [16.1K]2 years ago

4 0

Let width = x, then length = 3x - 2.
So we have area = width * length = x * (3x + 2)
A = 3x² + 2x

Now we need to find A(2) = 3 * 2² + 2 * 2 = 16ft²

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OlgaM077 [116]

Answer:

8:02 AM

Step-by-step explanation:

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60 divided by 45= 1.333334 minutes

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2 years ago

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3 years ago

Find a third degree polynomial function of the lowest degree that has the zeros below and whose leading coefficient is one.

Tanzania [10]

Answer:

The polynomial function of the lowest degree that has zeroes at -1, 0 and 6 and with a leading coefficient of one is $p(x) = x^{3}-5\cdot x^{2}-6\cdot x$ .

Step-by-step explanation:

From Fundamental Theorem of Algebra, we remember that the degree of the polynomials determine the number of roots within. Since we know three roots, then the factorized form of the polynomial function with the lowest degree is:

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Where $r_{1}$ , $r_{2}$ and $r_{3}$ are the roots of the polynomial.

If we know that $r_{1} = -1$ , $r_{2} = 0$ and $r_{3} = 6$ , then the polynomial function in factorized form is:

$p(x) = (x+1)\cdot x \cdot (x-6)$ (2)

And by Algebra we get the standard form of the function:

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2 years ago

Hey! whats 12.5% of 240km?

JulijaS [17]

Answer:

= 30 km

Step-by-step explanation:

12.5 * 240/100

<em><u>= 30 km</u></em>

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Step-by-step explanation:

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