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elena-14-01-66 [18.8K]
3 years ago
15

There are 14 math teaches and 26 science teaches at

Mathematics
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

14:26

Step-by-step explanation:

simplified, the answer is 7:13

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Use the method of completing the square to transform the quadratic equation into the equation form (x – p)2 = q. x2 - 12x - 9 =
marissa [1.9K]

Hence, the correct answer is: C) (x - 6)^2 = 45

Further explanation:

Given equation is:

x^2-12x-9=0

We will move the constant term on other side of the equation

x^2-12x=9

To complete the square, we will take the coefficient of x and divide it by 2, as we already know that one term is x.

\frac{12}{2}=6

So, adding (6)^2 on both sides

(x)^2-2.x.6+(6)^2=9+(6)^2\\(x-6)^2=9+36\\(x-6)^2=45

Hence, the correct answer is: C) (x - 6)^2 = 45

Keywords: Quadratic Equation, Solution of equation

Learn more about quadratic equation at:

  • brainly.com/question/4695279
  • brainly.com/question/4703807

#LearnwithBrainly

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3 years ago
Find the sum (the total measure) of the interior angles of a 17 sided polygon??
Lunna [17]

The formula in finding the sum or the total measure of the interior angles of polygon having n sides is:

Sum of interior angles = (n – 2) 180

Where n = number of sides of the polygon

In this problem, you are asked for the sum of the interior angles of a 17 sided polygon. You have to substitute the number of sides to the formula:

Sum of interior angles = (17 – 2) 180

Sum of interior angles = (15) 180

Sum of interior angles = 2,700 degrees

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Amswer the first one
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