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sammy [17]
4 years ago
13

Hannah reads at a constant rate of 3 pages every 8 minutes.

Mathematics
1 answer:
vladimir1956 [14]4 years ago
8 0

Answer:

p= 3/8m

Step-by-step explanation:

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A random sample of 121 students from the University of Oklahoma had a sample mean ACT score of 23.4 with a sample standard devia
Grace [21]

Answer:

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 121

Sample mean = 23.4

Sample standard deviation = 3.65

Level of significance = 0.05

Degree of freedom

= n - 1 = 120

95% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Calculation of critical value:

t_{critical}\text{ at degree of freedom 120 and}~\alpha_{0.05} = \pm 1.9799  

Putting the values, we get,  

23.4\pm 1.9799(\dfrac{3.65}{\sqrt{121}} )\\\\ = 23.4 \pm 0.6569\\\\ = (22.7431 ,24.0569)\approx (22.74,24.06)  

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

5 0
3 years ago
Solve for c in the scientific formula C=Wtc/1000
Troyanec [42]

C = Wtc/1000

1000C = Wtc

Wtc = 1000C

W = (1000C) / (tc)


This is assuming that C and c are not the same.

If they are the same, we have:


W = (1000) / t, provided ,that C and c are not equal to 0.


3 0
3 years ago
If you answer both I will give Brainliest they have to be correct.Good luck
svetlana [45]

Answer:

3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help !! ASAP PLSS !!!
nlexa [21]

Answer:

the 3rd one x+2=5

Step-by-step explanation:

Why?

because you are going from small # to a bigger # so you know you are adding

there is 2 there and it says that it = 5

7 0
3 years ago
Solve the inequality for y 2.9 < 5.6+y simplify your answer as much as possible
just olya [345]

Answer:

-2.7 < y

Step-by-step explanation:

2.9 < 5.6+y

Subtract 5.6 from each side

2.9-5.6 < 5.6-5.6+y

-2.7 < y

4 0
3 years ago
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