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NARA [144]
3 years ago
9

Will give brainliest if correct

Mathematics
1 answer:
zaharov [31]3 years ago
6 0

Answer:

8x+140=180

8x=40

x=5°

Step-by-step explanation:

Sum of angles in a straight line=180°

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The pressure of a gas p(v) varies inversely with the volume of the gas v. The pressure of a gas measures 25 kg/cm2 when its volu
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5 0
2 years ago
HELP!!
lbvjy [14]

Answer: Only Ingrid

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What’s the answer but you also have to simplify
Jlenok [28]

Answer:

<em><u>The</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>9x</u></em><em><u>²</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>3x</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>2</u></em><em><u>.</u></em>

Step-by-step explanation:

1) Collect like terms.

(7x^{2}  +  {2x}^{2} ) + ( - 2x + 5x) + (8 - 10)

2) Simplify.

{9x}^{2}  + 3x - 2

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6 0
3 years ago
Please help! Thankss!! :)
Vsevolod [243]

Answer:

21

Step-by-step explanation:

If b = -4, then -4(-4) is 16, since 2 negatives is a positive when multiplying or dividing. Then add 16 and 5, since 5 is c. You'll get 21

6 0
3 years ago
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Work out the size of an exterior and an interior angle of a regular 20-sided polygon.
KATRIN_1 [288]

Answer

Exterior,18°

Interior,162°

Step-by-step explanation:

To calculate exterior,360°÷no of sides, i.e

360°÷20=18°

Interior is gotten by 180°-exterior angle

180°-18°=162°

8 0
3 years ago
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