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ki77a [65]
3 years ago
13

Drag the point on the coordinate plane to the solution of the system of equations shown below: y=-2x-1 y = x + 2​

Mathematics
1 answer:
Sveta_85 [38]3 years ago
3 0

Answer:

(1,-1)

Step-by-step explanation:

-2x-1 = x+2

-3x = 3

x = -1

substitute

y = (-1) + 2

y = 1

point: (1,-1)

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Find the x-intercepts of the parabola with vertex (-4,2) and y-intercept (0,-30). Write your answer in this form: (x1, y1),(x2,
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Vertex form of a parabola 
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Substituting the values of h and k.
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<span>y = a(x + 4)^2 + 2 </span>

<span>substituting in the point (0, -30) for  x and  y
</span><span>-30 = a (0 + 4)^2 + 2 

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3 0
3 years ago
If the measure 3= (2y+20) degrees, and the measure of 5= (210-4y) degrees, what is the measure of 4?
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Read 2 more answers
Rewrite the polynomial-9x^5+36x^4+189x^3 in factored form, using the factoring method method you prefer.
ozzi

The polynomial 9x^5+36x^4+189x^3 in factored form is -9 x \times x \times x \times(x-7) \times(x+3)

<u>Solution:</u>

Given, polynomial equation is -9 x^{5}+36 x^{4}+189 x^{3}

We have to find the factored form of the above given polynomial equation.

Let us solve it by grouping.

Now, take the polynomial ⇒ -9 x^{5}+36 x^{4}+189 x^{3}

By taking common term out, we get

\rightarrow-9 x^{3}\left(x^{2}-4 x-21\right)

\rightarrow-9 x^{3}\left(x^{2}-(7-3) x-7 \times 3\right)

Grouping the terms we get,

\rightarrow-9 x^{3}\left(\left(x^{2}-7 x\right)+(3 x-7 x^3)\right)

Taking common terms out from each group,

\rightarrow-9 x^{3}(x(x-7)+3(x-7))

\Rightarrow-9 x^{3}((x-7)(x+3))

\rightarrow-9 x \times x \times x \times(x-7) \times(x+3)

Thus the factored form of polynomial is found out

4 0
3 years ago
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