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3 years ago

Is the number 4.277777777... rational or irrational

Mathematics

1 answer:

DanielleElmas [232]3 years ago

6 0

Answer:

Irrational

Step-by-step explanation:

If it cant be written as a fraction or has 0 as a denominator its irrational

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Evaluate the following equations

DochEvi [55]

Step-by-step explanation:

A....

Solution ,

$= \frac{h - 3}{3} = 3h \\$

$= h - 3 = 9h$

$= h - 3 - 9h = 0$

$= h - 9h = 3$

$= - 8h = 3$

Change the sign of both side

$= 8h = - 3$

$= h = - \frac{3}{8 } \\$

B....

Solution,

$= \frac{t}{2} = \frac{t + 1}{5} \\$

Multiply the both side by the least common multiple to eliminate the fraction...

$= 5t = 2t + 2$

$= 5t - 2t = 2$

$= 3t = 2$

$= t = \frac{2}{3} \\$

5 0

2 years ago

How many times does 25 go into 24

DiKsa [7]

It does not at all
none

8 0

3 years ago

Read 2 more answers

Eights rooks are placed randomly on a chess board. What is the probability that none of the rooks can capture any of the other r

lbvjy [14]

Answer:

$4.51\times10^{-10}$

Step-by-step explanation:

There are only 2 solutions for none of the rooks can capture any of the other rooks: only if they are laid out in either of the 2 diagonal of the chess board

The number of possible combination for the rock to laid out in 8x8 (64 slots) chess board

$\frac{64 * 63 * 62 * 61 * 60 * 59 * 58 * 57}{8!} = \frac{1.78\times10^{14}}{40320} = 4426165368$ possible combination

So the probability is pretty thin

$P = 2 / 4426165368 = 4.51\times10^{-10}$

4 0

4 years ago

The sum of three consecutive integers is 1,623

svetoff [14.1K]

Well to solve this you write out three equations
x+(x+1)+(x+2)=1623

then

3x=1620
x=540

so the three consecutive integers are 540,541, and 542.

3 0

3 years ago

Read 2 more answers

ritu can row downstream 20km in 2 hrs and upstream 4km in 2 hrs. find the speed of rowing in still water and the speed of the cu

Marina CMI [18]

Answer:

Speed of boat in still water is 6km/h

Speed of current is 4km/h

Step-by-step explanation:

We know speed = distance / time

Let the speed of boat in still water be x

Let the speed of current be y

Hence the speed of boat, down stream = $x+y$

Distance downstream = 20km

Time taken = 2 hours

We have

$x+y=\frac{20}{2}$

$x+y=10$ ......(1)

Speed of boat upstream = $x-y$

Distance upstream = 4

Time taken = 2

We have

$x-y=\frac{4}{2}$

$x-y=2$ ...(2)

Adding (1) & (2)

$2x=12$

$x=6$

Substituting in (1) we get

$y=4$

7 0

3 years ago