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Ivanshal [37]
3 years ago
6

Click on the photo to get a better view, I really don’t understand it

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

Answer:

1)107

2)43

Step-by-step explanation:

Triangles interior angles add up to 180 degrees. In the first one, the first two angles are 31and 42, and if interior angles add up to 180, the equation should be 31+42+x=180 x=107.

Second one is hardes. A square means a right angle, or 90 degrees. 180-90 is 90. Next, we have the two angles x, and x+4 We know that triangles interior angles add up to 180 degrees, so x+x+4+90=180 2x+94=180 2x=86 x=43

Hope this helps :D Please mark brainliest if correct :D

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Helppppp1!!\<br><br> (2x+4)=-4(-2x-6)
yulyashka [42]

Answer:

x=-10/3

Step-by-step explanation:

(2x+4)=-4(-2x-6)

distribute -4 to (-2x-6) by multiplying 

negative multiplied by a negative is a positive 

8x+24=2x+4

subtract 24 from each side 

8x=2x-20

subtract 2x from each side 6x=-20

divide both sides by 6 

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simply to -10/3 or -3 1/3 or -3.3

x=-10/3

hope this helps! if you have any questions please ask!

4 0
1 year ago
Under his cell phone plan, Owen pays a flat cost of $67.50 per month and $4 per gigabyte. He wants to keep his bill at $71.90 pe
Dmitry [639]

Answer:

1 gig im preety sure i might be wrong

Step-by-step explanation:

6 0
2 years ago
Please Help!! I don’t understand this!!
kondor19780726 [428]

Answer:

d=3

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Solve for x in the following equation:
Feliz [49]

Answer:

x = 17

Step-by-step explanation:

1) Make the bases the same then rewrite.

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2) Since the bases are the same, set the exponents equal to each other.

2(2x -5) = 3x + 7

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4 0
2 years ago
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Wewaii [24]
True, because a triangle with 2 congruent sides/angles is ALWAYS an isosceles triangle.
Hive a nice day! ♪
8 0
3 years ago
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