Question

When p is false and q is true, then p or q is true.

please help i am clueless

Answer 1

If pq is true and q is true, then p is true.

Answer 2

If p is true and ~q is false, then p ~q is false.

Answer 3

If p is true and q is false, the pq is true.

Answer 4

i dont understand any of them,, how do i find the answers??

Answer 5

you can try using truth tables; but i cant say that i quite understand the questions

Answer 6

you can also try to work thru logic algebra

Answer 7

i dont either,, what is a truth table

Answer 8

it is the first thing that they teach you so that you can work thru stuff like this ....

Answer 9

logic lgebra?? im in geimetry

Answer 10

i dont have teachers its all online

Answer 11

"When p is false and q is true, then p or q is true."

"p or q" means one or the other of them. Since one of {p,q} is true, then yes p or q is true because q is true.

Answer 12

oh it didnt post the whole question,, it says re they always sometimes or never true,, but i one is true then the answer is true??

Answer 13

It's like if someone asks me, "would you like cake or pie?" I can answer, "yes." because I would like at least one of those.

Answer 14

ohh i think i kind of understand

Answer 15

thank you<3

Answer 16

You can sometimes reason your way through it by thinking about a concrete example.

Let p =you are 7 feet tall. Let q =you are human. If someone asks, "are you human or 7 feet tall." The answer is yes. You might not be 7 feet tall, but you are human. That is always true because at least one of the conditions is true.

Answer 17

so When p is false and q is true, then p or q is true.
is always true

If pq is true and q is true, then p is true. is sometimes true

right??

Answer 18

ohh so If pq is true and q is true, then p is true. would alwys be true because p is true nd pq is true

Answer 19

If I'm understanding the notation right, pq means p AND q?

Answer 20

p-->q sorry

Answer 21

i think i am defenately going to fail i am still lost

Answer 22

Ah. If p implies q and q is true, that doesn't give you any definite information about p.
However, if p implies q and p is true, then q must be true.

Answer 23

It's the logic of conditional statements. If you say, "If p then q" and p is true, then q must be true, but if you say, "If p then q" and q is true, then p might be true, but there's no way to no for sure because you didn't say, "If q then p."

Answer 24

Read through this: http://themathpage.com/aBookI/logic.htm

Answer 25

thank you,,