Ireally need !
a sphere of metal with diameter 8cm is melted down.
it is then formed in to a trapezoidal prism as shown below.
the cross-sectional area (a) is 10cm2. what is the depth of trapezium? volume of a sphere=4/3 πr³
surface area of a sphere = 4πr²

Fun.  

The volume of the prism is just going to be the base area A times the depth x.

That's equal to the volume of the sphere.

We have r=8/2=4, A=10.

The exact answer is

128π/15  cm

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

2: 10

step-by-step explanation: