Answer:
its 100
Step-by-step explanation:
₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).
If you don't have a scientific calculator, you can use the following formula:
nPr = ![\frac{n!}{(n - r)!}](https://tex.z-dn.net/?f=%5Cfrac%7Bn%21%7D%7B%28n%20-%20r%29%21%7D)
₇P₅ = ![\frac{7!}{(7 - 5)!}](https://tex.z-dn.net/?f=%5Cfrac%7B7%21%7D%7B%287%20-%205%29%21%7D)
= ![\frac{7}{2!}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B2%21%7D)
= ![\frac{7 * 6 * 5 * 4 * 3 * 2!}{2!}](https://tex.z-dn.net/?f=%5Cfrac%7B7%20%2A%206%20%2A%205%20%2A%204%20%2A%203%20%2A%202%21%7D%7B2%21%7D)
= 7 * 6 * 5 * 4 * 3
= 2520
Answer: C
8 is A
9 is D
10 is C
11 is B
The amount of metal used to make the can = surface area of cylindrical can, which is: D. 42π in².
<h3>What is the Surface Area of a Cylinder?</h3>
A can is a cylinder.
Surface area of a cylinder = 2πrh + 2πr²
Thus:
Amount of metal used to make the can = surface area of the can
r = 6/2 = 3 in.
h = 4 in.
Therefore:
Surface area = 2×π×3×4 + 2×π×3²
Surface area = 24π + 18π
Surface area = 42π in².
Learn more about the surface area of a cylinder on:
brainly.com/question/14657844
Answer:
1 possible value for d is 5 metres and for w, 32kg.