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3 years ago

Witch expression is equivalent to

Mathematics

2 answers:

yulyashka [42]3 years ago

8 0

Answer:

Step-by-step explanation:

if a and considered 0 whatever power they are given their value won't change

whether it 0^1 or 0^100 the answer is always 0

Zielflug [23.3K]3 years ago

7 0

The answer is 0 no matter Wht it’s goin to be 0

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Plz I need help help me plzzzz

Annette [7]

Answer:

4400

Step-by-step explanation:

15 percent is 660

this means 1 percent is 44

this means 100 percent is 4400

please give me brainliest!<3

5 0

3 years ago

Helpp!......PLEACE.......

Arlecino [84]

Answer:

Step-by-step explanation:

4 0

2 years ago

URGENT DUE IN 20 MINUTES FOR GRADE PLEASE HELP<br> 2/3 (x-7)= -2

ASHA 777 [7]

7 0

3 years ago

No body helped me :'(

ziro4ka [17]

What was your question that was never answered?

6 0

3 years ago

Prove that root 7 is irrational by the method of contradiction

Alchen [17]

Let assume that $\sqrt7$ is a rational number. Therefore it can be expressed as a fraction $\dfrac{a}{b}$ where $a,b\in\mathbb{Z}$ and $\text{gcd}(a,b)=1$ .

$\sqrt7=\dfrac{a}{b}\\\\7=\dfrac{a^2}{b^2}\\\\a^2=7b^2$

This means that $a^2$ is divisible by 7, and therefore also $a$ is divisible by 7.

So, $a=7k$ where $k\in\mathbb{Z}$

$(7k)^2=7b^2\\\\49k^2=7b^2\\\\7k^2=b^2$

Analogically to $a^2=7b^2$ ------- $b^2$ is divisible by 7 and therefore so is $b$ .

But if both numbers $a$ and $b$ are divisible by 7, then $\text{gcd}(a,b)=7$ which contradicts our earlier assumption that $\text{gcd}(a,b)=1$ .

Therefore $\sqrt7$ is an irrational number.

8 0

3 years ago