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stellarik [79]
2 years ago
6

HELPPPP solve for x. x=

Mathematics
1 answer:
shtirl [24]2 years ago
5 0
<h3>Solution</h3>

4/x = (4 + 3)/4

4/x = 7/4

7x = 4 × 4

7x = 16

x = 16/7

x ≈ 2.28

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Answer:

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3 years ago
You are an assistant director of the alumni association at a local university. You attend a presentation given by the university
NNADVOKAT [17]

Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

sample size in 2017 = n2 = 200

number of people who went for another degree in 2018 = x1 = 54

number of people who went for another degree in 2017 = x2 = 46

p1 = x1/n1 = 0.25

p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

<h2> p1 -p2 ± z*\sqrt{((1-p1)*p1)/n1 + ((1-p2)*p2/n2}</h2>

0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = <u>0.102</u>

= 0.02 - 0.082 = <u>-0.062</u>

<u>There is 95% confidence that there is a difference that lies between  - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.</u>

<u></u>

<u>There is no significant difference between the two.</u>

5 0
3 years ago
Subtract the two expressions. 3x - 4 from -2x + 8
Margarita [4]
-2x - 3x = -5x
8 - 4 = 4
-5x + 4
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3 years ago
The table shows the rental charges for two car rental companies. For each, there is a flat rental fee, plus a charge per mile dr
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This was probably not answered on time
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