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melamori03 [73]
2 years ago
15

PLEASE HELP AND I NEED IT EXPLAINED IT TO ME ALSO..THANK YOU​

Mathematics
2 answers:
FinnZ [79.3K]2 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5 , then

sum = 180° × 3 = 540°

Sum the interior angles and equate to 540

3x - 11 + x + 8 + x + 2x + 7 + x - 8 = 540 , that is

8x - 4 = 540 ( add 4 to both sides )

8x = 544 ( divide both sides by 8 )

x = 68

Then

∠ U = x - 8 = 68 - 8 = 60°

∠ V = 3x - 11 = 3(68) - 11 = 204 - 11 = 193°

∠ W = x + 8 = 68 + 8 = 76°

∠ Y = x = 68°

∠ Z = 2x + 7 = 2(68) + 7 = 136 + 7 = 143°

Mekhanik [1.2K]2 years ago
3 0

The sum of the inside angles of a 5 sided figure needs to equal 540 degrees.

Add all the angles together to equal 540 and solve for x. Once you have the value for x you can use that to figure out all the angles.

X-8 + 3x-11 + x + 8 + 2x + 7 + x = 540

Simplify by combing like terms:

8x - 4 = 540

Add 4 to both sides:

8x = 544

Divide both sides by 8:

X = 68

Now replace x with 68 in each angle and solve:

U = 68-8 = 60

V = 3(68)-11 = 204-11 = 193

W = 68 + 8 = 76

Y = 68

Z = 2(68) + 7 = 136 + 7 = 143

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Step-by-step explanation: it would be the first answer, to find volume, it’s finding the amount of space in a 3D object, kind of like area, but multiply the height to the area (bxh)

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yuradex [85]

Answer:

the means absolute deviation is 1.8

the striking deviation is 7

(it is because the data point on the far right of the graph)

Step-by-step explanation:

calculate the absolute deviation:

1.  calculate the mean (add all numbers and divide by 10) = 2.6

2.  find the absolute value of each

2.6 - 0 = 2.6

2.6 - 1 = 1.6 (you have 1's 4 times so each one will be 1.6)

2.6 - 3 = 0.4

2.6 - 4 = 1.4 (you have 4's 3 times)

2.6 - 7 = 4.4

3.  Then add all of those values together

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4.  find the mean of the difference

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3 0
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Step-by-step explanation:

4 0
3 years ago
Appreciate answers and any help!
Savatey [412]

To find the expected value of the distribution, we multiply each outcome by it's probability. Doing this, we get that the expected value of defects on a skateboard is of \frac{4}{25}.

Outcomes and probabilities:

0 defects, 9/10 probability

1 defect, 1/20 probability

2 defects, 1/25 probability

3 defects, 1/100 probability.

Expected value:

E(X) = 0\frac{9}{10} + \frac{1}{20} + 2\frac{1}{25} + 3\frac{1}{100} = \frac{1}{20} + \frac{2}{25} + \frac{3}{100} = \frac{5 + 8 + 3}{100} = \frac{16}{100}

Dividing both numerator and denominator by 4:

\frac{4}{25}

Thus, the expected value of defects on a skateboard is of \frac{4}{25}.

A similar problem is given at: brainly.com/question/23156292.

4 0
3 years ago
Look at this equation <br> y=7x+1/3x-6<br> if 3x=15, then what is the value of y?
Anarel [89]

Answer:

y=36/9 or y=4

Step-by-step explanation:

3x=15: x=5

y=7(5)+1/3(5)-6

y=36/15-6

y=4

4 0
3 years ago
Read 2 more answers
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