Answer:
i think its

Step-by-step explanation:
Given that:
Consider it is
instead of 10 on two places.
is between 3 and 4. So, Beau thinks a good estimate for
is = 3.5.
Solution:
To find
, Beau found 3² = 9 and 4² = 16.
He said that since 10 is between 9 and 16.
Since 10 is close to 9, therefore
must be close to 3. So, Beau's estimate is high.
Now,


Since, 10 lies between 9.61 and 10.24, therefore
must be lies between 3.1 and 3.2.

Therefore, the estimated value of
is 3.15.
Answer: 18 c
Step-by-step explanation: since they have the same variables you can easily just add them together
Answer:
Option B. 
Step-by-step explanation:
we know that
The volume of a cone is equal to

we have


substitute


assume

