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SCORPION-xisa [38]
3 years ago
11

Which expression is a irrational number? A. 0.78 repeating

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0

Answer:

The answer is C. Square root √18

Step-by-step explanation:

you are looking for irrational number.

if use a calculator and you see that the √18 is 4.242642687119285 is a non-terminated number and non-repeated number so its irrational

the other three is rational because you can turn them into a fraction and we don't want that.

Oxana [17]3 years ago
4 0
<span>An irrational number has an infinite decimal expansion that does not repeat. Numbers that have infinite decimal expansions that do not repeat </span>cannot<span> be expressed as the fraction of two integers.  

</span>A rational number is any number that can be expressed as the fraction of two integers. 
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3.1a+3.2=<br> \,\,10.33<br> 10.33
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Step-by-step explanation:

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2 years ago
A triangular sail has a base length of 2.5 meters.The area of the sail is 3.75 square meters.How tall is the sail?
love history [14]
Area of a triangle = 1/2 x base x height

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Find Height :
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3.75  = 1/2 x 2.5 x height

3.75 = 1.25 x height 

height = 3.75 ÷ 1.25

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Answer: The height is 3 meters.
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7 0
3 years ago
To drive to work, Dave has to drive 20 miles east and then 15 miles north. If there were a direct road going northeast, how many
suter [353]
By the Pythagorean theorem:

x= \sqrt{20^2+15^2}= \sqrt{400+225}= \sqrt{625}=25 \ miles

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3 years ago
How do I solve 48x-36x=-144
sasho [114]
48x-36x=-144\\\\12x=-144\ \ \ \ \ \ \ \ |divide\ both\ sides\ by\ 12\\\\\boxed{x=-12}
5 0
3 years ago
Read 2 more answers
App 19.study
lions [1.4K]

Answer:

1 \to 22 \to 0.176

2 \to 13 \to 0.104

3 \to 18 \to 0.144

4 \to 29 \to 0.232

5 \to 37 \to 0.296

6 \to 6 \to 0.048

Step-by-step explanation:

Given

n = 125

See attachment for proper table

Required

Complete the table

Experimental probability is calculated as:

Pr = \frac{Frequency}{n}

We use the above formula when the frequency is known.

For result of roll 2, 4 and 6

The frequencies are 13, 29 and 6, respectively

So, we have:

Pr(2) = \frac{13}{125} = 0.104

Pr(4) = \frac{29}{125} = 0.232

Pr(6) = \frac{6}{125} = 0.048

When the frequency is to be calculated, we use:

Pr = \frac{Frequency}{n}

Frequency = n * Pr

For result of roll 3 and 5

The probabilities are 0.144 and 0.296, respectively

So, we have:

Frequency(3) = 125 * 0.144 = 18

Frequency(5) = 125 * 0.296 = 37

For roll of 1 where the frequency and the probability are not known, we use:

Total \ Frequency = 125

So:

Frequency(1) added to others must equal 125

This gives:

Frequency(1) + 13 + 18 + 29 + 37 + 6 = 125

Frequency(1) + 103 = 125

Collect like terms

Frequency(1) =- 103 + 125

Frequency(1) =22

The probability is then calculated as:

Pr(1) = \frac{22}{125}

Pr(1) = 0.176

So, the complete table is:

1 \to 22 \to 0.176

2 \to 13 \to 0.104

3 \to 18 \to 0.144

4 \to 29 \to 0.232

5 \to 37 \to 0.296

6 \to 6 \to 0.048

5 0
3 years ago
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