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Liula [17]
3 years ago
7

Find the measure of angle X in the figure below

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

X = 80°

Step-by-step explanation:

55+45=100

180-100=80 angles in a triangle=180°

So Y = 80

and Y=X because opposite angles around a point are equal

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3 years ago
the Wall Street Journal reported that automobile crashes cost United States $162 billion annually. The average cost per person f
Tanya [424]

Answer:

a) Margin of error = 166.311

b) sample size ≥ 62

Step-by-step explanation:

Given:

Average cost = $1599

Sample size = 50 persons

Standard deviation = $600

Confidence level is 95%

a) Margin of error = z\frac{\sigma}{\sqrt{n}}

Now for confidence level of 95% z-value = 1.96

Thus,

Margin of error = 1.96\frac{600}{\sqrt{50}}

or

Margin of error = 166.311

b) For Margin of error ≤ 150

z\frac{\sigma}{\sqrt{n}} ≤ 150

or

1.96\frac{600}{\sqrt{n}} ≤ 150

or

1.96\frac{600}{150} ≤ √n

or

√n ≥ 7.84

or

n ≥ 61.4656

Therefore,

sample size ≥ 62

6 0
3 years ago
Plz help me find it
SVEN [57.7K]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

360 - 285 = 75

It would be 75.

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

6 0
3 years ago
Read 2 more answers
I cannot find anyone who will stand by my side for better or worst. So much Pain
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Answer:

Kelz come on stop it please your okay

Step-by-step explanation:

5 0
2 years ago
90 POINTS: What is the slope of the line in the correct graph? What is the slope of the line in the incorrect graph? Are the slo
galben [10]

Answer:

Correct graph

slope \frac{(175 - 105)}{(9 - 2)}  \\  =  \frac{70}{7}  \\  = 10

Incorrect graph

slope =  \frac{(175 - 105)}{(8 - 2)}  \\  =  \frac{70}{6}  \\  = 11.7

Slopes are not the same

5 0
3 years ago
Read 2 more answers
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