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3 years ago

What is 3 5/8 *1 3/4

Mathematics

2 answers:

IrinaVladis [17]3 years ago

4 0

Answer:4/2

Step-by-step explanation:

Rashid [163]3 years ago

3 0

ANSWER: It will be 3/4

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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

PLEASE HELP WITH THIS AND PLEASE SHOW WORK! ALSO PLEASE ACTUALLY GIVE ANSWER 35 POINTS AND BRAINLIEST!!

Arlecino [84]

Answer:

Step-by-step explanation:

Use proportions like shown. 4/6 is 1.5 and if you multiply 40 by 1.5 it equals 60.

3 0

3 years ago

Factor by grouping. a^2+2ab-24b^2

coldgirl [10]

You can rewrite that as:

a^2-4ab+6ab-24b^2 then factor 1st and 2nd pair of terms.

a(a-4b)+6b(a-4b) so you have

(a+6b)(a-4b)

3 0

3 years ago

Need help please due soon!

Marina CMI [18]

143 because you multiply by the scale factor of 13

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3 years ago

How many times does 20 go into 100

ss7ja [257]

Answer:

5 times

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers