Answer:
almost -.4
Step-by-step explanation:
The way I would answer these when I was in school, just divide -3/7.
that gives you -.428 so it is pretty close to .-4, but not exactly on it.
In the first part, there are 10 fish total. 6/10 = 3/5 which means that there were 3/5 goldfish. When she buys two more, the total becomes 12 and 4/12 = 1/3 Hope this helps!
[ [13.9] ] - [ [-8.23] ] +[ [7.04+6.7] ]=35.87
Answer:
Rate of increase of radius = 0.0064 ft/sec
Rate of increase of surface area = 1.61 
Step-by-step explanation:
Given that:
Rate of change of volume of a spherical balloon = 8 cubic feet per minute

Radius,
= 10 feet
To find:
The rate of change of radius at this moment and rate of change of surface area at this moment?
Solution:
First of all, let us have a look at the formula:

Now, differentiating the volume and area, we get:




Answer:
I don't know. Make your question clearer, please.
Step-by-step explanation: