All categories

3 years ago

I dont unsterstand irrational numbers

Mathematics

2 answers:

Sonbull [250]3 years ago

6 0

Answer:

Irrational number does not terminate and do not repeat. I hope this can make you understand what does irrational number is. Hope it helps you

Step-by-step explanation:

elixir [45]3 years ago

4 0

An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. Instead, the numbers in the decimal would go on forever, without repeating.

You might be interested in

Shortern this expression pls

pogonyaev

Answer:

$c =\frac{8}{3}$

Step-by-step explanation:

Given

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}$

Required

Shorten

We have:

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}$

Rationalize

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7} * \frac{4 + \sqrt 7}{4 + \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}*\frac{4 - \sqrt 7}{4 - \sqrt 7}}$

Expand

$c = \sqrt{\frac{(4 + \sqrt 7)^2}{4^2 - (\sqrt 7)^2}} + \sqrt{\frac{(4 - \sqrt 7)^2}{4^2 - (\sqrt 7)^2}$

$c = \sqrt{\frac{(4 + \sqrt 7)^2}{16 - 7}} + \sqrt{\frac{(4 - \sqrt 7)^2}{16 - 7}$

$c = \sqrt{\frac{(4 + \sqrt 7)^2}{9}} + \sqrt{\frac{(4 - \sqrt 7)^2}{9}$

Take positive square roots

$c =\frac{4 + \sqrt 7}{3} + \frac{4 - \sqrt 7}{3}$

Take LCM

$c =\frac{4 + \sqrt 7 + 4 - \sqrt 7}{3}$

Collect like terms

$c =\frac{4 + 4+ \sqrt 7 - \sqrt 7}{3}$

$c =\frac{8}{3}$

4 0

3 years ago

2x^2 +5x+3/x^2+2x+1

german

Answer:

$\frac{2x+3}{x+1}$

Step-by-step explanation:

2x² + 5x + 3 = (x + 1) (2x + 3)

x² + 2x + 1 = (x + 1) (x + 1)

(x + 1) cancels out because there is one in the denominator and the numerator, leaving you with the answer.

Hope this helps!

3 0

3 years ago

What is the definition of a ray?

Gelneren [198K]

A ray is a line with only 1 end.

4 0

3 years ago

Read 2 more answers

What ordered pair can you use to make the equation below true?<br><br> 2x = y

Angelina_Jolie [31]

(1, 2)

plug 1 in for x and 2 in for y

2x1=2 is 2=2

4 0

3 years ago

Given:

Dennis_Churaev [7]

You cut off the edge. No matter; we have two pairs of congruent angles, and included side AC is congruent to itself, so we have everything we need to invoke

Answer: ASA, the Angle-Side-Angle triangle congruent theorem

3 0

3 years ago

Read 2 more answers

I dont unsterstand irrational numbers​

I dont unsterstand irrational numbers