Answer:
3x+8y+13x= 16x+8y= 8×(2x+y)
Answer:
the new equation is f(x)=x^2-4
vertex- (0,-4)
zeros- (-2,2)
y-intercept- (-4)
and it has a minimum
Step-by-step explanation:
The correct option is: A. 80 cm³
Explanation
Diameter of the coin,
cm.
So, the radius,
cm.
As the coin is circular, so..
Area of each circular surface,
cm²
Now for finding the amount of plastic for making each coin, we will find the Volume of each coin first.
As the thickness (
) of the coin is 0.5 cm, so Volume of each coin,

As you need to make a batch of 50 coins, so the total volume of 50 coins
[Rounded up to the nearest multiple of 10 cm³]
So, the amount of plastic you will need for making a batch of 50 coins is 80 cubic centimeter.
8 choose 3 = 8!/(3!*(8-3)!) = 8*7*6/(3*2) = 56