Answer:
(3; - 4)
Step-by-step explanation:
Blue: y = -x - 1
Red: y = -2x + 2
The answer is 6 because 6 is a multiple of 3 and is half of 12 so he could buy 2 of them
Answer:
7
Step-by-step explanation:
By using the formula you just need to place -3 where X is being that X will represent F. After placing -3 where it needs to be it should look like this:
4-(-3)
Remove the parathesis and whenever there is a - in front of - in a parathesis you need to change the sign:
4+3
Add the numbers and you get:
7
The surface area of a sphere is A = 4π R²
The volume of a sphere is V = (4/3) ( π) (R³)
The ratio of (surface area) to (volume) is
4 π R² / (4/3) (π) (R³)
Divide top and bottom by 4π : R² / (1/3) (R³)
Multiply top and bottom by 3: 3 R² / R³
Divide top and bottom by R² : 3 / R .
For the Earth,
A / V = (3) / (3,960 miles) =<em> 0.00076 per mile </em>(rounded)