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belka [17]
3 years ago
6

Determine the value of x in this polygon.

Mathematics
1 answer:
OLEGan [10]3 years ago
3 0

Answer:

<h2>x = 23.5</h2>

Step-by-step explanation:

It's the trapezoid.

We know: the sum of the angle measures at one leg of a trapezoid is 180°.

Therefore we have the equation:

(x+12.5)+(6x+3)=180    <em>combine like terms</em>

(x+6x)+(12.5+3)=180

7x+15.5=180         <em>subtract 15.5 from both sides</em>

7x=164.5   <em>divide both sides by 7</em>

x=23.5

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Refer this image line:

Source: Internet

Hope this helps.

4 0
3 years ago
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7 0
3 years ago
What is 14.5 divided by 34.5? Please show how you did it because I got a bit confused and would like to see what I did wrong.
Akimi4 [234]

Answer:

29/69 (= 0.42)

Step-by-step explanation:

there are several ways to do this, one way is to use fractions:

Expressing each decimal in improper fractions:

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Hence,

14.5 ÷ 34.5

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= 29/2  x 2/69

= 29/69   (answer)

If you need the answer in decimal, you can use long division to do 29÷69 and you will get 0.42 (nearest hundredth)

8 0
3 years ago
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In this case,the equation would be:
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Therefore the slope is -11/4.

Hope it helps!
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4 years ago
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Gre4nikov [31]

Answer:

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8 0
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