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butalik [34]
3 years ago
13

Find the geometric mean of 5 and 7

Mathematics
1 answer:
dsp732 years ago
3 0

Answer:

\sqrt{35}

Step-by-step explanation:

A geometric mean is just \sqrt[n]{term one * term two * term three * etc.}, where n is the number of terms.

i.e. Geometric mean of 5, 6, 7: there are three values, so the mean is \sqrt[3]{5*6*7}

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Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n=500, x=
DiKsa [7]

Answer:

0.3581<x<0.4429

Step-by-step explanation:

Using the formula for calculating the confidence interval of the population proportion p expressed as:

Confidence interval = p ± Z * √p(1-p)/n

p is the population proportion = x/n

p = 200/500

p = 0.4

Z is the z-score at 95% CI = 1.96

n is the sample size = 500

Substituting the given parameters into the formula we will have;

Confidence interval = 0.4 ± 1.96 * √p(1-p)/n

Confidence interval = 0.4 ± 1.96 * √0.4(0.6)/500

Confidence interval = 0.4 ± 1.96 * √0.24/500

Confidence interval = 0.4 ± 1.96 * √0.00048

Confidence interval = 0.4 ± 1.96 * 0.0219

Confidence interval = 0.4±0.04294

Confidence interval = (0.3571, 0.4429)

Hence the confidence interval of the population mean is 0.3581<x<0.4429

5 0
3 years ago
Solve this quadratic equation using the quadratic formula. 2x 2 - 10x + 7 = 0
sladkih [1.3K]

Answer:X=11/10

Step-by-step explanation:

2x2-10x+7=0

<u><em>4</em></u>-10x+<u><em>7</em></u>=0

11-10x=0

-10x= -11

Divide both side by -10

-10x/-10.  -11/-10

Answer= 11/10

7 0
3 years ago
Read 2 more answers
I will rate you brainliest i need help with these 3 questions
Vlad1618 [11]

Answer:

1) difference of squares, then its factors are (x+4)(x+2)

2) 3 (x+4)/2 (x-4)(x+4)

3/2 (x-4)

3) 3x+11/5x-9

4 0
2 years ago
Problem Page Jessica's boat has a top speed of 6 miles per hour in still water. While traveling on a river at top speed, she wen
stealth61 [152]
I think it is 3:1 so tell me if it is wrong
6 0
3 years ago
Marnie had two pages of math homework and four pages of ELA homework. If each page had 14 questions on it, how many questions di
ahrayia [7]

Answer:

84

Step-by-step explanation:

First, there are 6 pages of work. then multiply 6 by the number of questions (14)

6x14=84

4 0
2 years ago
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