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o-na [289]
2 years ago
9

Difference between real numbers and intergers​

Mathematics
1 answer:
Greeley [361]2 years ago
4 0

Answer:

REAL NUMBER - real number is union of rational and irrational numbers .... whole numbers, natural numbers, integers, rational and irrational numbers are included in real numbers.

INTEGER -. integer means

means whole - valued positive or negative number or 0......

suppose 1, 2, 3, -6, -2....

whole numbers, such as 3, 4, but not 3.6 or √4 .

I hope you understand the difference between real numbers and integers.......

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Find the population variance of: 4 6 8 9 9 <br><br> round to the nearest hundredth
soldi70 [24.7K]

Answer:

Step-by-step explanation:

To find the population variance, we first need the mean:

\bar{x}=\frac{4+6+8+9+9}{5}=\frac{36}{5}=7.2 so the mean is 7.2. To find the population variance (which is almost exactly the same as the sample variance except for a small difference in the denominators of the formula) we have to take each number minus the mean, and then square the difference. Add together all these squared numbers and then divide by the number of numbers. Like this:

(4-7.2)^2=10.24\\(6-7.2)^2=1.44\\(8-7.2)^2=.64\\(9-7.2)^2=3.24\\(9-7.2)^2=3.24

Add together those numbers and divide them by 5:

\sigma=\frac{10.24+1.44+.64+3.24+3.24}{5}=\frac{18.8}{5}=3.76

5 0
3 years ago
5x + 7 = 2x - 8 can anyone say how to solve please ​
SCORPION-xisa [38]

Answer:

x = - 5

Step-by-step explanation:

Given

5x + 7 = 2x - 8 ( subtract 2x from both sides )

3x + 7 = - 8 ( subtract 7 from both sides )

3x = - 15 ( divide both sides by 3 )

x = - 5

4 0
2 years ago
Noah's dog eats 8 ounces of dog food each day. Noah bought a 28-pound bag of dog food. How many 8-ounce servings are in a 28-pou
Fittoniya [83]
Answer: 56
Explanation: 28 pounds = 448 ounces
448/8=56
3 0
2 years ago
Arrange these numbers from least to greatest
iogann1982 [59]
A. -3/7 = -0.4286
b. -5/6 = -0.8333
c. -3/5 = -0.6000
d. -7/9 = -0.7777
bdca is least to greatest

Correct answer is D.
4 0
3 years ago
20 points. What is the measure of angle Z in this figure?
ludmilkaskok [199]
Z° + 43° = 180°-------(linear angles)

z° = 180 - 43°

z   =   137°

Hope this helps.

6 0
3 years ago
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