An irrational number is any number which can't be written as a fraction this way. For example, pi and the square root of two cannot be expressed as a fraction of two whole numbers, so they are both irrational.

if we make the respective accounts in the first and second problem we will see that they are irrational numbers

the fourth is a periodic number, which falls within the irrational

the only rational is the third

7 0

3 years ago

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In a polynomials equation do you add the exponents if they are different

Alexus [3.1K]

You can only add exponents if you are multiplying two of the same variable together. For example,
$x^{12} \times x^4 = x^{16}$

You take them away if you are dividing.
<span> $x^{12} \div x^4 = x^{8}$

In a polynomial equation, you can add together two of the same variable if they have the same exponent
</span> $3x^4 + 7x^4 = 10x^4$

Or you can take them away in a similar fashion,
<span> $3x^4 - 7x^4 = -4x^4$

But you cannot add two (or more) different exponents,
</span> $6+4x+7x^2 = 6+4x+7x^2$ (it does not get any simpler)

I hope this has answered your question, if not, leave a comment and I'll update the answer.

4 0

3 years ago

Solve the following equations with any method. Justify your reasoning. 1. (5x-8)=(8x-17) 2.(3x+5)+(4x-7)=180

3241004551 [841]

1. (5x-8)=(8x-17)
5x-8x=-17+8
-3x=-9
x=3

2. (3x+5) + (4x-7) =180
3x+5+4x-7=180
3x+4x=180-5+7
7x=182
x=26

8 0

3 years ago