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Mumz [18]
3 years ago
13

Please help me idk this

Mathematics
2 answers:
kap26 [50]3 years ago
7 0
Ur answer is 74 degrees
marysya [2.9K]3 years ago
4 0

Answer:

x = 74°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180, that is

x + x + 32 = 180, that is

2x + 32 = 180 ( subtract 32 from both sides )

2x = 148 ( divide both sides by 2 )

x = 74

Thus x = 74°

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3 years ago
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AARP reported on a study conducted to learn how long it takes individuals to prepare their federal income tax return (AARP Bulle
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Answer:

Confidence interval: (30.1,36.9)

Step-by-step explanation:

We are given the following data set:

35.3,30.5,37.4,26.5,13.0,49.9,28.8,44.0,61.6,0.5,40.5,34.9,47.9,36.6,24.1,39.8,47.8,18.5,36.6,39.2,14.5,37.3,40.5,49.3,45.5,28.3,19.5,5.6,52.6,41.4,45.3,39.0,33.7,29.4,14.5,40.1,33.7,36.9,5.6,33.7

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{1339.9}{40} = 33.5

S.D = 11(given)

n = 40

Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

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6 0
3 years ago
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11-3=8

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Once you found b rewrite your equation in slope intercept form.

y=4x+7

You can check this equation by plugging in the unused coordinate (1,11) and find it balances.

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