Answer:
Volume of sphere = 4.186 cubic inches
Step-by-step explanation:
Radius of sphere = r = 1 inch
Volume of sphere = ?
The formula used is: 
Putting value of radius and π and finding volume:

So, Volume of sphere = 4.186 cubic inches
Answer:
1. 2x + 5y = 5
2. 3x + 2y = -9
Step-by-step explanation:
Answer:
y = 2
Explanation: z must be equal to 1, and 3x2 is equal to 6. 15+6= 21
Answer:
-9 = 0.45m
Step-by-step explanation:
0.45m -9 = 0.9m
-0.45m -0.45m
-9 = 0.45m