Question

what does slashed(/) 0 stand for

Answer 1

context plz? :)

Answer 2

0 with / on it

Answer 3

the empty set

Answer 4

oh

Answer 5

lol @skullpatrol you're quite imaginative \(\phi\) :D

Answer 6

i mean this one

∅

Answer 7

lol they're just the same but different font

Answer 8

It's a cancel sign

Answer 9

https://en.wikipedia.org/wiki/Phi#Use_as_a_symbol

It has many use, for example it represents the golden ratio \(\dfrac{1+\sqrt5}2\)

Answer 10

In D&T it represents diameter?

Answer 11

so for a question like this what would be the answer

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.
4x - y + 3z = 12
x + 4y + 6z = -32
5x + 3y + 9z = 20

A. {(8, -7, -2)}
B. {(-8, -7, 9)}
C. ∅
D. {(2, -7, -1)}

Answer 12

who's imaginative now?

Answer 13

Then that is an empty set, which means that the set of the solutions is empty, i.e. no solution

Answer 14

the set with no members

Answer 15

i got all zeros but the answer choice doenst show all zero

Answer 16

all zeros ain't the answer, if you plug in all zeros the equations are invalid

Answer 17

if you got "all zeros" you got x=0, y=0 , and z=0
but if we use 0 for x,y,z in the equations, for example, the first equation
4x - y + 3z = 12
we get
4*0 - 0 +3*0 which is 0, and 0 ≠ 12
so that can't be the answer

Answer 18

X=0 Y=0 Z=0

Answer 19

@phi X=0 Y=0 Z=0

Answer 20

X=0 Y=0 Z=0 is NOT the answer. remember, that if you use these numbers in each equation, you should find the left side of the equation equals the right side. It won't.

Answer 21

the two sides of the equation must have the same value for the equation to be a true statement