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4 years ago

Is 0.1212 repeating a rational number

Mathematics

2 answers:

Licemer1 [7]4 years ago

8 0

Answer:

Yes-

Step-by-step explanation:

It repeats .121212 infinitely... I assume. You didn't say if it repeated or not.

Pepsi [2]4 years ago

3 0

Answer:

Yes

Step-by-step explanation:

Every repeating decimal satisfies a linear equation with integer coefficients, and those equations have solutions that are always rational numbers.

Therefore, every repeating decimal is a rational number.

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Nina and Jo both ran a 13 km race.

yKpoI14uk [10]

We will see that Jo's speed, rounded to 2 digit places, is:

S = 6.42 km/h

<h3>How to get Jo's speed?</h3>

Remember that:

<em>speed = distance/time.</em>

Nina takes 2 hours and 10 minutes to finish the race, first, let's write the time in hours:

1 hour = 60 min.

Then:

10 min = (10/60) hours = 0.167 hours.

So we can write the time as:

2.167 hours.

And the distance is 13km, so her speed is:

S = 13km/2.167h = 6 km/h

The time that she takes to reach a distance of 11km (where she meets with Jo) is:

T = 11km/(6 km/h) = 1.83 hours.

Now, Jo starts 7 minutes after Nina, then the time in which he travels the 11 km is:

1.83 hours - 7 minutes.

Where:

7 min = (7min/60 min) hours = 0.117h

Then the time is:

T= 1.83h - 0.117h = 1.713 hours.

So he travels 11km in 1.713 hours, then his speed is:

S = 11km/ 1.713 hours = 6.42 km/h

If you want to learn more about speed:

brainly.com/question/4931057

#SPJ1

6 0

2 years ago

The following data represent the number of grams of fat in breakfast meals offered at a local fast food restaurant. (a) Constru

rewona [7]

Answer:

The following are the answer to this question:

Step-by-step explanation:

In the question some data is missing, which is defined in the attached file please find it.

The table for point a:

plot for the Stem-and-leaf:

0 3 4 5 7 4

1 2 2 4 4 5 7 7 7

2 0 3 4 4 5 8 6

3 3 4 7 9 4

4 1

In point b:

Its distributed skewed is correct because in its points 1 is a tail on its right side.

please find the attached file.

8 0

4 years ago

Pls help me with this multiple choice ! (Actually try).

navik [9.2K]

Answer:

Step-by-step explanation:

$\sin(30) = \frac{y}{68} \\ y = 34 \\ \cos( 30) = \frac{ x }{68} \\ x = 34 \sqrt{3}$

5 0

3 years ago

PLEASE HELP. DO IT GOOD AND CORRECTLY PLEASEE.

Montano1993 [528]

Part A) $520

Part B) 13.33% - Divide 520 by 39

Part C) $20.80 Divide 520 by 100, then multiply by 4

You're Welcome

4 0

3 years ago

Rachel can make 3 bracelets in an hour. Oliver can make only 2 bracelets in an hour, but he already has 5 completed bracelets. C

Tanya [424]

Answer:

After 5 hours

Step-by-step explanation:

Given that Rachel can make 3 bracelets in an hour.

Let y be the no of bracelets and x no of hours.

Then equation for Rachael would be y = 3x ... i

Oliver is having initially 5 completed bracelets and every hour he would make 2 new bracelets

Hence equation would be

y = 2x+5 ... ii

Our question is why both will be equal

y would be equal in both if 3x=2x+5

Or x=5

After 5 hours form the start, both will have same number of bracelets.

8 0

3 years ago