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BigorU [14]
3 years ago
5

HELP PLEASE I NEED A ANSWER ASAP

Mathematics
2 answers:
nata0808 [166]3 years ago
8 0

Answer:

5x+6+48+81=180°

5x+135=180

5x=45

x=9

Step-by-step explanation:

I HOPE it will help you

notsponge [240]3 years ago
5 0

Answer:

answer is 9

Step-by-step explanation:

48+81=129

180-129=51

51-6=45

45/5=9

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Read 2 more answers
What is the general form of the quadratic with vertex at (2, 3) and passing through the point (5, 12)?
ki77a [65]

The general form of the quadratic with vertex at (2, 3) and passing through the point (5, 12) is x²-4x+7.

<h3>What is the vertex form of a quadratic equation?</h3>

Vertex form of the quadratic equation is used to find the coordinate of vertex points at which it crosses its symmetry.

The standard equation of the vertex form of quadratic is given as,

y=a(x-h)^2+k

Here, (h, k) is the vertex point.

The vertex of quadratic at (2, 3) and passing through the point (5, 12). Put the value of vertex point in the above equation,

y=a(x-2)^2+3

As the quadratic passes through the point (5, 12). Thus, put the value of this point,

12=a(5-2)^2+3\\12-3=a(3)^2\\9=a\times9\\a=\dfrac{9}{9}\\a=1

Put the value of <em>a</em> in the above expression,

y=1(x-2)^2+3\\y=(x-2)^2+3\\y=x^2-4x+4+3\\y=x^2-4x+7

Thus, the general form of the quadratic with vertex at (2, 3) and passing through the point (5, 12) is x²-4x+7.

Learn more about the vertex form here;

brainly.com/question/17987697

#SPJ1

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3 years ago
Which of the following are exterior angles? Check all that apply.
s344n2d4d5 [400]
2,3,5,6 are all exterior angles because they are out of the triangle
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A package of 3 notebooks cost $5.46. At that rate, how much money would a package of 5 notebooks cost?
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5.46 ÷ 3 = 1.82
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4 years ago
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