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3 years ago

Is √8 a rational number ?

Mathematics

2 answers:

Gemiola [76]3 years ago

5 0

Answer:

Hence, the square root of 8 is not a rational number. It is an irrational number.

Step-by-step explanation:

according to my math book.. thanks me later

bonufazy [111]3 years ago

4 0

Yeah I’m pretty sure it is a rational number

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I need to fine the height of a triangular pyramid and I already have the volume and Area

Keith_Richards [23]

I’m not sure, but i think that you have to take the volume equation, and plug in the other variables (volume, area) to find the height

6 0

3 years ago

– A BOX CONTAINS 9 RED AND 2 BLUE MARBLES. IF YOU SELECT

Doss [256]

The odds against selecting a red marble is =2/11

<h3>Calculation of probability</h3>

The number of marbles which were red = 9

The number of marbles which were blue = 2

The total amount of marbles in the Box = 11

When one marble is picked at random from the box, the odds against selecting a red marble can be gotten through the blue marble.

That is, the number of blue marble/ total marble

= 2/11

Learn more about probability here:

brainly.com/question/24756209

#SPJ1

7 0

1 year ago

Answer 16 and 17 with work

Anvisha [2.4K]

16a.) π $\frac{8}{15}$

16b.) $\frac{7}{15}$ = 7 ÷ 15

Put (7 ÷ 15) in your calculater to get 0.4666667

That multiplied by 100 and rounded to the nearest whole percent is

47%

17a.) 24 + 16 + 14 = 54

$\frac{16}{54} = \frac{8}{27}$

17b.) 8 ÷ 27 = 0.296

0.296 × 100 = 29.6

Rounded to the nearest whole number is 27%

8 0

3 years ago

A superintendent of a school district conducted a survey to find out the level of job satisfaction among teachers. Out of 53 tea

frez [133]

Answer:

b. 1.15

Step-by-step explanation:

The z statistics is given by:

$Z = \frac{X - p}{s}$

In which X is the found proportion, p is the expected proportion, and s, which is the standard error is $s = \sqrt{\frac{p(1-p)}{n}}$

Out of 53 teachers who replied to the survey, 13 claim they are satisfied with their job.

This means that $X = \frac{13}{53} = 0.2453$

She find that the proportion of satisfied teachers nationally is 18.4%.

This means that $p = 0.184$

Standard error:

p = 0.184, n = 53.

$s = \sqrt{\frac{0.184*0.816}{53}} = 0.0532$

Z-statistic:

$Z = \frac{X - p}{s}$

$Z = \frac{0.2453 - 0.184}{0.0532}$

$Z = 1.15$

The correct answer is:

b. 1.15

5 0

4 years ago

What is 2/3 plus 2 1/3?

Gemiola [76]

2/3 plus 2 1/3 is 3 because 2/3+1/3=1 and 1+2=3.

4 0

4 years ago

Read 2 more answers