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3 years ago

Give your own example of irrational number explain why the number you chose is irrational

Mathematics

2 answers:

valentinak56 [21]3 years ago

8 0

√38 is irrational.

38 is an integer that is not the square of an integer, so its square root is not a rational number.

Len [333]3 years ago

6 0

Answer: 157.34123598...

Step-by-step explanation: To determine if the decimal 157.34123598... is rational or irrational, notice that the decimal is non-terminating. However, this decimal is also non-repeating because there is no digit of group of digits that repeat.

When we have a decimal that is both non-terminating and non-repeating, it must be an irrational number.

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How do I solve this problem??

choli [55]

They're the same like integers.
First you should interpret it.
For example:
a. -3x + 8x is the same like -3 + 8. You just add x.
Which is 5x.

3 0

3 years ago

8/11 times 1/8 PLS HURRYYY

anyanavicka [17]

Answer:

8/88 is the answer

Step-by-step explanation:

The simplified form is 1/11

5 0

3 years ago

Read 2 more answers

In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7.2 minutes. A 95

Elina [12.6K]

Answer: Margin of error = 6.58

Confidence interval = (26.91, 40.08)

Step-by-step explanation:

Since we have given that

Sample size n = 8

Sample mean = 33.5 minutes

Population standard deviation = 9.5 minutes

At 95% confidence interval,

α = 0.05

t = 1.96

So, Margin of error is given by

$t\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{9.5}{\sqrt{8}}\\\\=6.58$

Confidence interval would be

Lower limit:

$\bar{x}-6.58\\\\=33.5-6.58\\\\=26.91$

Upper limit:

$\bar{x}+6.58\\\\=33.5+6.58\\\\=40.08$

Hence, the interval would be (26.91, 40.08)

But at standard deviation 7.2 minutes, the confidence interval was (27.5, 39.5)

Confidence interval using the standard normal distribution is wider than the confidence interval using t distribution.

3 0

3 years ago

Click on file! please help, thank you!! <3

Elden [556K]

15+3x-4+6x= 9x+11 add 6+3 then subtract 15-4

3y-4x+8x-y= 4x+2y add -4+8 then subtract 3-1

5x+8x+10x-3x= 20x Add 10+5+8 to get 23 then subtract 3

7 0

3 years ago

A families weekly shopping bill increases from £120 to £150, what is the percentage increase?

AVprozaik [17]

Answer:

The answer is 25%

Step-by-step explanation:

150-120=30

30 divided by 120=0.25

0.25 times 100 (because percents are of 100)= 25%

formula: ([b-a)/a]x100

3 0

3 years ago