A few days ago
math again, help please.?
if n is a whole number which of the following must be an odd number?
a]3n
b]6n
c]3n+1
d]3n+2
e]2n+1
Top 7 Answers
A few days ago
Favorite Answer
it has to be (e) because… if you multiply a number by 2 it will ALWAYS be even and if you add 1 to it it will become odd.
1
A few days ago
the answer is E) 2n+1
2*1+1=3
2*2+1=5
2*3+1=7
anything multiplied by 2 is going to be even then when you add 1 is becomes odd.
0
A few days ago
c]3+1
0
A few days ago
2n+1
coz 2n is ALWAYS even*
and +1 => number after that.
After a even a odd comes
therefore 2n+1 must be even
_______________________
*2n is a standard expression for generating even numbers
coz anything *2 =even
also
2n+1 is a standard expression for generating odd numbers
0
A few days ago
2n+1
1
A few days ago
The answer is e, just try plugging in a bunch of random numbers for n and you’ll see the answer always comes out odd.
1
A few days ago
WHAT???
0
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