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e-lub [12.9K]
3 years ago
5

Help please!!!! I’ll give brainilest

Mathematics
2 answers:
labwork [276]3 years ago
5 0
Hiii....I’m new in Brainly....can u plz thnx my other 3-4 ansssss plzzzzzzzz

So the correct ans is ‘D’
Studentka2010 [4]3 years ago
4 0
THE ANSWER IS B bebsjas
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An equation in the system is y = x + 1. What is the other equation in the system if the solution is only at (0, 1)?
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8-4k=40 <br><br> What is the value of k?
alisha [4.7K]

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Can someone do this im in the test rn
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35

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In the diagram below, what is the measure of the missing angle?
Neporo4naja [7]

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Answer is 62 degrees.

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3 years ago
Write the equation of a polynomial of degree 3, with zeros 1, 2 and -1 where f(0)=2
drek231 [11]

<u>Answer:</u>

The equation of a polynomial of degree 3, with zeros 1, 2 and -1 is x^{3}-2 x^{2}-x+2=0

<u>Solution:</u>

Given, the polynomial has degree 3 and roots as 1, 2, and -1. And f(0) = 2.

We have to find the equation of the above polynomial.

We know that, general equation of 3rd degree polynomial is  

F(x)=x^{3}-(a+b+c) x^{2}+(a b+b c+a c) x-a b c=0

where a, b, c are roots of the polynomial.

Here in our problem, a = 1, b = 2, c = -1.

Substitute the above values in f(x)

F(x)=x^{3}-(1+2+(-1)) x^{2}+(1 \times 2+2(-1)+1(-1)) x-1 \times 2 \times(-1)=0

\begin{array}{l}{\rightarrow x^{3}-(3-1) x^{2}+(2-2-1) x-(-2)=0} \\ {\rightarrow x^{3}-(2) x^{2}+(-1) x-(-2)=0} \\ {\rightarrow x^{3}-2 x^{2}-x+2=0}\end{array}

So, the equation is x^{3}-2 x^{2}-x+2=0

Let us put x = 0 in f(x) to check whether our answer is correct or not.

\mathrm{F}(0) \rightarrow 0^{3}-2(0)^{2}-0+2=2

Hence, the equation of the polynomial is x^{3}-2 x^{2}-x+2=0

3 0
3 years ago
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