The mass of lead cylinder is: 859.10 grams
Step-by-step explanation:
In order to find the mass of a cylinder we have to find the volume first
Given
Radius = r = 2 cm
Height = h = 6 cm
The volume of cylinder is given by:
![V = \pi r^2h](https://tex.z-dn.net/?f=V%20%3D%20%5Cpi%20r%5E2h)
Putting the values
![V = 3.14 * (2)^2 * 6\\= 3.14*4*6\\=75.36\ cm^3](https://tex.z-dn.net/?f=V%20%3D%203.14%20%2A%20%282%29%5E2%20%2A%206%5C%5C%3D%203.14%2A4%2A6%5C%5C%3D75.36%5C%20cm%5E3)
Now,
Density of lead per cm^3 = 11.4g
![Mass\ of\ cylinder = Volume*Density\\= 75.36*11.4\\=859.10\ grams](https://tex.z-dn.net/?f=Mass%5C%20of%5C%20cylinder%20%3D%20Volume%2ADensity%5C%5C%3D%2075.36%2A11.4%5C%5C%3D859.10%5C%20grams)
The mass of lead cylinder is: 859.10 grams
Keywords: Volume, Density
Learn more about volume at:
#LearnwithBrainly
Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area
Base perimeter = 4 * 18 = 72 inches
Base Area = 18*18 = 324 square inches
Pyramid Surface Area = (.5 * 72 * 12) + 324
Pyramid Surface Area = 432 + 324
Pyramid Surface Area = 756 square inches
Source:
http://www.1728.org/volpyrmd.htm
Answer:
-32
Step-by-step explanation:
f(x) = 2x + 6
f(-19) = 2*(-19) + 6
= -38 + 6
= -32
Answer:
2
Step-by-step explanation:
(2/3)3= 2× 3/3 = 2×1 (since 3/3=1)
=2