Recent content by persian52

i agree.

natural numbers { 0, 1, 2, 3, ...} Yes it's.

Sorry for that, it wasn't completed yet, now it's.

Homework Statement Give an explicit formula for a function f : ℕ ⇒ ℕ that is a) onto, but not one-to-one. b) neither one-to-one nor onto. 1. The attempt at a solution a) The formula f_{2}(n)= ⌊\frac{n}{3}⌋. it's onto cause f_{2}(3n)= n for every n. but, it's not one-to-one, cause...

I believe zero. btw thank you.

1. Among the following sets, identify all pairs of equal sets? What is the cardinality of each one of the sets? a) ∅ b) {∅} c) {{∅}} d) {∅,{∅}} e) {∅} \bigcap {{∅}} f) {{∅},∅} I would truly appreciate if you explain a bit. Thank you in advance. _____________________________________________ my...

thank you guys for the help!

See attachment for the question. ---------------- ∀x ∈ D, if P(x) then Q(x). this means ∀x P(x) -> Q(x). all you have to do is find a value for x ∀x this means for ALL x right so you can choose ANY element but for the E its only things in the domain so all you have to do is choose an x...

i got ur point, true

Homework Statement Design an experiment to determine the temperature outside. Materials: 2 blocks of wood stop watch Measuring tape The Attempt at a Solution I believe it has something to do with measuring the rate of flow of a viscous liquid down a ramp. The colder the...

1/16 + 1/20 = 0.1125 1/0.1125 + 24 +20 = 52.8 20v/52.8 = 0.38

hmm u want me to tell u wat i got? because i got close to Question D. but i want to get the accurate answer.

What current is flowing through the on/off switch? The circuit below is powered by a 20-volt battery. What current is flowing through the on/off switch (When it is on, as shown)? A. 0.23 amperes B. 0.29 amperes C. 0.32 amperes D. 0.38 amperes i tried myself i got a close answer...