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DerKrebs [107]
3 years ago
14

Here are two expressions with a mixing number:

Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0

An irrational number is a real number that can't be written as a fraction: since all rational numbers (\mathbb{Q}) are real numbers (\mathbb{R}), the irrational numbers are all elements in \mathbb{R} that don't belong to \mathbb{Q}.

The rational numbers are closed with respect to sum and multiplication, which means that the sum/product of two rational numbers is a rational number.

Note that, of all the options, only \sqrt{3} is irrational, because the other options are

3 = \dfrac{3}{1},\quad 2 =\dfrac{2}{1},\quad 0.\overline{23} = \dfrac{23}{99}

so they all can be written as fraction. This means that

-\dfrac{5}{9} \times 3,\quad -\dfrac{5}{9} \times 2,\quad -\dfrac{5}{9} \times\dfrac{23}{99}

are all rational numbers, because they are the multiplication of two rational numbers.

So, your only hope to get an irrational number is to multiply

-\dfrac{5}{9}\times \sqrt{3}

Expression 2 works exactly in the same way, because everything we said about the product is true for the sum as well.

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Please I need help with this please
Black_prince [1.1K]

Answer:

is ur mom

Step-by-step explanation:

cause she so fat

7 0
3 years ago
How many solutions does this system of equations have?<br><br> y = –2x + 2<br> 2y + 4x = 4
Rama09 [41]

Step-by-step explanation:

First we solve it.

I'll use substitution.

In the first equation y equals -2x+2 so we can apply that to the second equation

2y + 4x = 4

2(-2x+2) + 4x = 4

distribute

-4x+4+4x=4

simplify

4=4

To figure out how many solutions it has:

•If both side of the equal sign are exactly the same: Infinitely many

ex: 6x=6x

•If both sides of the equal sign do not match when completely simplified: No solutions

ex: 3x=-5x

•If it creates an equation: 1 solution

ex: x=3+2y

Since both sides of the equal sign are 4, we have infinitely many solutions.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

7 0
3 years ago
Need help on number 3
kompoz [17]

f(x) = x^2 -3x +2

Replace x with 2:

f(2) = x^2 -3(2) +2

f(2) = 4-6 +2

f(2) = 0


g(x) = 4x-5

replace x with -1

g(-1) = 4(-1) -5

g(-1) = -4-5

g(-1) = -9


Now subtract

f(2) - g(-1) = 0 - (-9) = 0+9 = 9


The answer is 9.



4 0
3 years ago
Please help with these! ( im not sure if you can see it)
sashaice [31]

Answer:

Im not sure how to answer

Step-by-step explanation:

But you find the area of all the square and rectangles and then add them to find it

3 0
3 years ago
Read 2 more answers
A. How are the functions y = x and y = x + 4 related? How are their graphs related?
kicyunya [14]

Step-by-step explanation:

gggggggggggggiiiiiiiiiiii

5 0
3 years ago
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