Answer:
cm³
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V = 
πr³ ( r is the radius )
Here diameter = 4 cm , hence r = 4 ÷ 2 = 2 cm
V = π × 2³ = π × 8 = 
cm³
Thus
combined volume = + 15π = + 
= cm³
Im not sure but i think it is 11
In getting the concentration of the substance that has an aqueous solution of a fluoride of 0.039M, the density doesn't matter anymore you just have to multiply its solution to its molar mass that would came up to 0.7409g and then do the conversion that could lead to a 0.07409%(m/m). I hope you are satisfied with my answer and feel free to ask for more
Answer:
11%
Step-by-step explanation:
To find the percentage of books to total cost, divide 253/2300. You get .11
Move the decimal 2 places to the right and that's the percentage.
11%
hope this was good enough
Answer:
I believe the answer is 1)
Step-by-step explanation:
