Answer:
Step-by-step explanation:
volume=
[
tex]=1/3\pi *9*4+2/3\pi *3^3[/tex]
=
= 30 
volume
The price of the shopkin should be smaller or or equal
Solution: Should not be more than 4
Answer: <4
-
Recall Euler's theorem: if 
, then
where 
is Euler's totient function.
We have 
- in fact, 
for any 
since 
and 
share no common divisors - as well as 
.
Now,
where the 
are positive integer coefficients from the binomial expansion. By Euler's theorem,
so that
Answer:
2 gallons of pure alcohol
Step-by-step explanation:
Let x represent the number of gallons of pure alcohol needed, and create an equation:
4(0.25) + x(1) = (x + 4)0.5
1 + x = 0.5x + 2
x = 0.5x + 1
0.5x = 1
x = 2
So, 2 gallons of pure alcohol should be added.
Answer:
3.5 min
Step-by-step explanation:
