this appears to be correct as left side = right side
Answer:
1.797 mm
Step-by-step explanation:
The key to solving this problem is finding the length of the coin wrapper, or "height" of the cylinder.
The volume of a cylinder equation is:
V = hπr^2
- We want to find h
- We are given diameter and we will want the radius so we divide
21.17/2 = 10.585
r = 10.585
So to find h we manipulate the equation by dividing both sides by pi and r^2
resulting in the following:
h =
now substitute given values and we get
h = = 80.883
Now to find the thickness of a single coin we divide the length of the sleeve (h) by the number of coins in the sleeve (45).
Thickness = 80.883/45 = 1.797 mm
Answer:
61
Step-by-step explanation:
3x + 6 = 183
3x = 177
x = 59
(x+2) = (59+2) = 61
It is correct on khan academy
Answer:
5/(760=76
Step-by-step explanation:
Expression for g is g = 4πl/T²
Step-by-step explanation:
- Step 1: Fing g from the given expression T = 2π. Firstly, square the expression to find g.
⇒ T² = 4π²
⇒ gT² = 4πl
⇒ g = 4πl/T²