<span>Each sphere of ice has a radius of 2cm
</span>one tray makes 6 spheres
<span>What is the total volume of ice the tray can make at one time?
Total volume of each sphere is </span><span>33.51 cm^3
The tray can hold 6 of these at a time
33.5 * 6
201 cm^3 total volume of ice that the tray can make at one time
Written in pi
64

cm^3
Hope this helps :)</span>
If the perimeter is 44 the the diagonal is 22
Answer:
b.
1017 sq. cm
Step-by-step explanation:
Surface area:
The surface area of a sphere with radius r is given by:

In this question:
Diameter of 18, since the radius is half the diameter, 
The surface area is:

So 1017 square centimeters, and the best option is b.
Remember that
the formula to calculate the combination is equal to
nCr=n!/[r!(n-r)!]
in this problem
we have
n=4
r=3
substitute the given values
4C3=4!/[3!(4-3)!]
4C3=4!/[3!(1)!]
4C3=4*3!/3!
4C3=12
the answer is 12
For 2 scoops
we have
n=4
r=2
substitute
4C2=4!/{2!(4-2)!]
4C2=(4*3*2*1)/4
4C2=6
the answer is 6