Rice: .5(8) = 4kg (4000 g)
Popcorn: 150(12) = 1800 g
Total mass = mass of rice (4000 g) + mass of popcorn (1800g)
So...
Total mass = 5,800 g (or 5.8 kg)
Answer:
Water (one oxygen atom bonded to two hydrogen atoms)
Step-by-step explanation:
The chemical formula for water is H²O. The H is the chemical symbol for Hydrogen and O is the chemical symbol for Oxygen. The 2 is a subscript which represents how many atoms of a certain element are in a molecule. In this case, the subscript ² comes after H, indicating that there are two Hydrogen atoms inside water. There is no subscript after O, meaning there is only one Oxygen atom. Therefore, there are two Hydrogen atoms and one Oxygen atom that bond to form water. Hope this helps :))
Answer:
i don't know but I think question 1 is 64
Answer:
A.
Step-by-step explanation:
Answer:
9 units and 12 units to nearest hundredth.
Step-by-step explanation:
Let one leg be x units long then the other = x+3 units.
By Pythagoras:
x^2 + (x+3)^2 = 15^2 = 225
2x^2 + 6x + 9 = 225
2x^2 + 6x - 216 =0
x^2 + 3x - 108 = 0
(x - 9)(x + 12) = 0
x = 9
So the other 2 legs are 9 and 12.
