4/10
Hope this helped ᕕ(ᐛ)ᕗ
Volume of the pyramid:

Perimeter of the cross-section:


Area of the cross-section:


First derivative test:

Then the height of the cross-section/pyramid is

The volume of the pyramid that maximizes the cross-sectional area
is

Answer:
r = √14
Step-by-step explanation:
Is this what you meant? If so heres' the answer
Equation of circle
Center the origin
r = √14
Well it would be 70% of them because Jack had 100% and 30% minus 100% is 70%
Answer:
n=601
Step-by-step explanation:
Formula used:

Solution:

Where,

As there is no previous estimate for p
Then, p=0.5
Here on using the table

Also,
E=0.04
p=0.5
Thus,
n=600.2279407
On approximating the value,
n=601