Who invented math and how do we know he's right?

Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.

Step-by-step explanation:

Pythagoreans

Step-by-step explanation:

The Pythagoreans who made up the term 'mathematics', and the study of math began with them. The Pythagoreans are given credit for the first proof of the Pythagorean theorem, though the theorem has a long history, and with proof of the existence of irrational numbers.

Pythagorean Theorem: a^2 + b^2 = c^2

Say a = 3 and b = 4.

3^2 is 9

4^2 is 16

9 + 16 is 25

The root of 25 is 5

So, 3^2 + 4^2 = 5^2

(This is just an example)

Hope this helped :)

if x decreases by 4 then y increases by 10

step-by-step explanation:

answer: 2 and 1

step-by-step explanation: got this question