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dedylja [7]
3 years ago
8

What is the value of x? A. 124 B. 112 C. 68 D. 62

Mathematics
2 answers:
Artemon [7]3 years ago
4 0
C.) 68
Why?
a triangle has 180 degrees. 
The tics denote the sides being equal, which means the opposite angles are equal, too. To get the remaining subtract it from 180... 180- 2(56) =68 degrees
alexgriva [62]3 years ago
3 0
A triangle should add up to 180 degrees.
So subtract 56 from 180 and get 124. This is an isosceles triangle so 2 sides have the same degree, which would be the bottom 2 sides in this case so 124-56=68, the answer is x=68. You can check by adding them all up:56+56+68=180 so this is correct.
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An error has been made in subtracting the two polynomials shown in the work below the problem is (6x^2-4x-5)-(3x^2-7x=2)
MissTica

Answer/Step-by-step explanation:

Let's work out the subtraction of the polynomial to find out where the error is and the correct result we should have.

6x² - 4x - 5

- 3x² - 7x + 2

= [6x² - 3x²] [-4x -(-7x)] [-5 -(+2)]

= 3x² + 3x - 7

The error that was made in the subtraction given in the question was that the negative signs before the terms, 7x and 5 were ignored while subtracting.

The sign is very important, it defines the value of the term.

We can choose to solve the problem in another way shown below:

(6x² - 4x - 5) - (3x² - 7x + 2)

Distributive the negative sign in the second polynomial

6x² - 4x - 5 - 3x² + 7x - 2

Combine like terms

6x² - 3x² - 4x + 7x - 5 - 2

3x² + 3x - 7

7 0
3 years ago
17/18 - 8/9 equal out to
Nutka1998 [239]
\frac{17}{18}-\frac{8}{9}=x
You must find a common denominator(bottom)
\frac{8}{9}×\frac{2}{2}=\frac{16}{18}
\frac{17}{18}-\frac{16}{18}=\frac{1}{18}
Your answer is x=\frac{1}{18}
8 0
3 years ago
What is the distance between these points: (3,-16) and (-10,-12)
Alex Ar [27]
Distance between points (3, -16) and (-10, -12) is 13.6015
8 0
2 years ago
Read 2 more answers
Can you help me with 7 and 8
elena55 [62]
All I know or all I understood was both 7 and 8 aren’t functions. Hope this helped
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3 years ago
Help! i need this done this is worth 50% of my grade-
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Answer:

A

Hope you get it right!:)

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