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Murrr4er [49]
3 years ago
8

(5 + w)(w + 4) = Need help not sure how to do it

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0

Answer:

w^2+ 9 + 2 0

Step-by-step explanation:

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The remainder after diving x^4+3x^3-8x^2+5x-9 by x+5 is ____.
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Use the polynomial remainder theorem. It says that a polynomial f(x) has remainder f(c) upon division by x-c.

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f(x)=x^4+3x^3-8x^2+5x-9

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6 0
3 years ago
The graph of which function will have a maximum and a y-intercept of 4? f(x) = 4x2 + 6x – 1 f(x) = –4x2 + 8x + 5 f(x) = –x2 + 2x
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Answer:

Option C (f(x) = -x^2 + 2x + 4)

Step-by-step explanation:

In this question, the first step is to write the general form of the quadratic equation, which is f(x) = ax^2 + bx + c, where a, b, and c are the arbitrary constants. There are certain characteristics of the values of a, b, and c which determine the nature of the function. If a is a positive coefficient (i.e. if a>0), then the quadratic function is a minimizing function. On the other hand, a is negative (i.e. if a<0), then the quadratic function is a maximizing function. Since the latter condition is required, therefore, the first option (f(x) = 4x^2 + 6x - 1) and the last option (f(x) = x^2 + 4x - 4) are incorrect. The features of the values of b are irrelevant in this question, so that will not be discussed here. The value of c is actually the y-intercept of the quadratic equation. Since the y-intercept is 4, the correct choice for this question will be Option C (f(x) = -x^2 + 2x + 4). In short, Option C fulfills both the criteria of the function which has a maximum and a y-intercept of 4!!!

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3 years ago
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Step-by-step explanation:

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