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2 years ago

Help, please this is a cry for help also, show the work thanks

Mathematics

1 answer:

Nastasia [14]2 years ago

6 0

Answer:

x=20

Step-by-step explanation:

The two angles, (2+3x) and 62 are alternate angles and therefore, have the same degrees. That being said, here is our equation: 3x+2=62.

From here, we just solve for x.

3x = 62 - 2

3x = 60

x = 3/60

x = 20

Hope this helps!

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olga_2 [115]

Answer:

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3 years ago

How heavy a load (pounds) is needed to pull apart pieces of wood 4 inches long and 1.5 inches square? Here are data from student

statuscvo [17]

Answer:

a. (29526.192 , 32155.808)

b. (29673.9301 , 32008.0699)

Step-by-step explanation:

on calculation, we find that sample mean = 30843 and sample standard deviation = 3018.504, and n=20

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Sample Size (n) = 20

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z critical value for 95% confidence interval:

z(a/2) = z(0.025) = 1.96

Margin of Error (ME) = z(a/2) x SE = 1314.808

95% confidence interval is given by:

Sample Mean +/- (Margin of Error) = 30841 +/- 1314.808

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Sample Mean = 30841

SD = 3018.504

Sample Size (n) = 20

Standard Error (SE) = SD/root(n) = 674.958

alpha (a) = 1-0.9 = 0.1

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Margin of Error (ME) = t(a/2,n-1)x SE = 1167.0699

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3 years ago

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DanielleElmas [232]

Answer:

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Step-by-step explanation:

Given

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