Answer: 285.2 kg
Step-by-step explanation:
Given
The volume of helium in the balloon is 
The density of the helium is 
Mass of the helium gas is given by the product of density and volume

Thus, the mass of gas is 285.2 kg
Use pythagorean theorem
a^2+b^2=c^2
4^2+3^2=c^2
16+9=c^2
25=c^2
c=5
hope this helps!
Answer:

Step-by-step explanation:
The equation in vertex form is

Substituting in the coordinates (1,2) to find a,

Answer:
0.875
Step-by-step explanation:
i used my calculator :D
Answer:
0.016 with a repeating sign above the 6
Step-by-step explanation:
90/1.5=1.5/x
90x/90=1.5/90
x=0.016 repeating
/= division