Thursday

April 24, 2014

April 24, 2014

Posted by **Jack** on Sunday, January 5, 2014 at 10:26pm.

- Math -
**Reiny**, Sunday, January 5, 2014 at 10:34pmMeenah conjecture is either true or false

Assume that it is true, that is, all even numbers are divisible by 4

test some

8/4 = 2 , ok

24/4 = 6

10/4 = 2.5, not exact

Since we assumed it to be true and I found a case which was false, my assumption must have been false.

Since the conjecture is either true OR false, and my assumption that it was true showed up to be wrong, it must be false.

(All we really needed was one single exception)

**Related Questions**

math - Test these conjectures. Give three examples. Explain if the conjecture is...

math - a. Seperate the fractions; 2/6, 2/5, 6/13, 1/25, 7/8, and 9/29 into two ...

math - Separate the fractions 2/6,2/5,6/13,1/25,7/8and 9/29into two categories: ...

Geometry - CounterExamples and Inductive Reasoning and Conjectures? Make a ...

Math - Make a conjecture about the next item in each sequence. 1.4,6,9,13,18 -I ...

math - The following conjectures were made by students. Which do you think are ...

Math - determine whether each conjecture is true or false. Give a counterexample...

Math - make a conjecture for the following show work the sum of an even and odd ...

geometry - "Determine whether the conjecture is true or false.Give a ...

geometry - I really need help on this question: Determine whether each ...