Answer:
is there a picture or something?
Answer:
C.
Step-by-step explanation:
Pi = circumference / diameter.
Answer:
Step-by-step explanation:
The formula of a midpoint of a segment AB with endpoints at A(x₁, y₁) and B(x₂, y₂):
We have the points F(-5, -3) and G(-3, 3).
Substitute:
Answer:
can u rewrite your answer in the chat thingy bc your equations are so close together it's hard to tell which is apart of which, I tried to answer them but I don't want you to get them wrong so rewrite it and I'll tell you the answers :)
This queston is not of Algebra. It is of chemistry.
You have to work with the chemical formula of the compound, the atomic and molar masses and use proportions.
1) PH3:
element atomic mass number of atoms total mass
P 31 g/mol 1 31 g/mol
H 1.0 g/mol 3 3.0 g/mol
------------------
molar mass 34 g/mol
2) proportions
372 g H / x = 3.0 g H / 34 g PH3
=> x = 372g H * 34 g PH3 / 3.0 g H = 4216 g PH3
Answer: 4216 g
