Is it a riddle? No dirt is in the hole. But 72ft^3 of air...
Answer:
A
Step-by-step explanation:
6/x* 5/(2x+1) = 30/ 2x^2+x
The formula of cylinder: 兀r^2×altitude
Take 兀 as 3.14
In this case,the equation will be:
兀1.5^2×3.5
=2.25兀×3.5
=7.875(3.14)
=24.7275
≈24.74
Thus the answer is B.24.74 m3.
hope it helps!
Assuming "z" is
![\mathbb Z](https://tex.z-dn.net/?f=%5Cmathbb%20Z)
, the set of integers:
a. yes
b. no;
![m^2+n^2](https://tex.z-dn.net/?f=m%5E2%2Bn%5E2)
will always be a non-negative integer
c. yes
d. no; same reason as (b)
e. yes
Answer:
92 hrs
Step-by-step explanation:
Given 50% of x = 46 hrs
Then
50% /100% x X = 46
0.5 x X = 46
0.5x = 46
Divide both sides by 0.5
0.5x/0.5 = 46/0.5
x = 92
x is 92 hrs