Let 
and 
be the respective radii of balloons A and B. If the fixed total volume is V, then
and knowing 
and 
at the start, we have V = 6916π/3 cm³. Then when 
, the radius of the other sphere is 
.
Differentiating both sides with respect to time t gives a relation between the rates of change of the radii:
We're given 
the whole time. At the moment , the radius of balloon B is changing at a rate of
Answer:
In addition, from the response shown, using a graphical calculator brings the following benefits:
1) You can write the system of linear equations as big as you want. This is: systems 3 * 3, 4 * 4, 5 * 5.
2) The response to systems of equations greater than 2 * 2 can be complicated when you graph the solution, therefore, the graphing calculator can be much more efficient in these cases.
3) You can write the linear equations in any way. Resolving by hand you should probably rewrite the system of equations to find the solution.
Step-by-step explanation:
Answer:
problem 1 2x+5y= 0
×=-1/2-5/2y
problem 2 y=1 3/7y y=-1.428571
7y=-10
problem 3 x=-7
problem 4 x-y=20
x=-20
Answer:
The first one is right the rest of them is not right correct
Step-by-step explanation:
Answer:
0.8
Step-by-step explanation:
