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ReneWell, darling, the "4" in 4H2 signifies there are four hydrogen atoms, and the "2" indicates there are two hydrogen molecules. So, in total, you've got yourself four hydrogen atoms and two hydrogen molecules in that little chemical formula. Hope that clears things up for you, sweetie.
In the chemical formula 4H2, the number 4 indicates the presence of four hydrogen atoms, while the number 2 indicates that each hydrogen atom is paired with another to form a diatomic molecule (H2). Therefore, the formula 4H2 represents a total of 8 hydrogen atoms bonded together in 4 H2 molecules.
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a circle has the equation (x-2)^2+(y+4)^2=169. which of the following is the center of the circle(2,4) (2,4), (-2,4) (-2,4), (2,-4) (2,-4), (-2,-4)?
The answer is (2-4)
X-2 times x plus 4 divided by x squared - 4?
x-2(x)+4/x^2 -4=x-2x+4/x^2 -4=-x-4+4/x^2
What number do you have to subtract from -4 to get -2?
-2
How many different four figure numbers can be made using the digits 1 9 9 1?
4!/(2!*2!) = 4*3*2*1/(2*1*2*1) = 6 4!/(2!*2!) = 4*3*2*1/(2*1*2*1) = 6 4!/(2!*2!) = 4*3*2*1/(2*1*2*1) = 6 4!/(2!*2!) = 4*3*2*1/(2*1*2*1) = 6
What is -2 raise to the power 2 root x where x is 4?
2 root 4 = 2 x 2; -2 to the power 4 is 16 (-2/4/-8/16)
