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Bess [88]
3 years ago
12

Please help I’ll mark you as brainliest if correct

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
5 0

Answer:

x = 28

Step-by-step explanation:

Okay, so we know that all the angles in a triangle are supposed to add up to 180°, and we already have our 26°, so we can take that off:

180 - 26 = 154

So our two angles add up to 156, so we set up our problem like this:

3x + 2x + 14 = 154

So now we combine like terms:

3x + 2x = 5x

So now our equation is:

5x + 14 = 154

So now we just have to do the inverse operations thing:

154 - 14 = 140

140 ÷ 5 = 28

So, x = 28

if this is wrong, let me know so I can fix it

hope this helps:)

Ivenika [448]3 years ago
3 0

Answer:

X=28

Step-by-step explanation:

If x=28 then the degrees of the corners are 26, 84, and 70

Those added together equals 180 degrees, the amount of degrees a triangle is supposed to have.

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First, find the mean. You'll need it to compute the variance.

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The variance of the sample is then computed with the formula

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The standard deviation is the square root of the variance, so

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Have a nice day!

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