Answer:

Step-by-step explanation:
Given:
Radius of spherical tank, 
Volume of a quarter of a sphere is given as:

Plug in 70 ft for
,
for
and solve for the volume,
. This gives,

Therefore, the volume of the quarter sphere shaped tank is 
Answer:402325.6
Step-by-step explanation:
let a be the total sales till date
8.6% of a=34600
8.6/100 x a=34600
0.086 x a=34600
divide both sides by 0.086
(0.086 x a)/0.086=34600/0.086
a=402325.6
Answer:
-3ad/2 -2bd = c
Step-by-step explanation:
3a + 4b = 1 - 2c/d
⇒3ad + 4bd = d - 2c [multiply d on both sides]
⇒3ad + 4bd - d = -2c [subtract d on both sides]
⇒3ad/(-2) + 4bd/(-2) = c [divide -2 on both sides]
⇒-3ad/2 -2bd = c
Answer:
The solution of the linear system is:
and 
Step-by-step explanation:
The following linear equation is solved as follows:


After some algebraic manipulation:






And finally,


The solution of the linear system is:
and 
a^4+2a+8 because if you combine like terms that is what you get