Surface area of cylinder is given by area of circle + area of the rectangle that curved around the cylinder
Area of the base of the cylinder =
![\pi r^{2} = 8^{2} \pi =64 \pi](https://tex.z-dn.net/?f=%20%5Cpi%20r%5E%7B2%7D%20%3D%208%5E%7B2%7D%20%5Cpi%20%3D64%20%5Cpi%20)
Area of the cylinder 'wall' = width × length =
![12](https://tex.z-dn.net/?f=12)
×
![2r \pi](https://tex.z-dn.net/?f=2r%20%5Cpi%20)
=
![12](https://tex.z-dn.net/?f=12)
×
![16 \pi](https://tex.z-dn.net/?f=16%20%5Cpi%20)
=
![192 \pi](https://tex.z-dn.net/?f=192%20%5Cpi%20)
Note that the wall of the cylinder is in the shape of a rectangle. The width of the rectangle is the height of the cylinder. The length of the rectangle is the circumference of the circle base.
Surface area of cone is given by
![\pirl](https://tex.z-dn.net/?f=%20%5Cpirl)
where
![l](https://tex.z-dn.net/?f=l)
is the slanted height of the cone
SA of cone =
![\pi (8)(10)=80 \pi](https://tex.z-dn.net/?f=%20%5Cpi%20%288%29%2810%29%3D80%20%5Cpi%20)
Hence total painted surface area is
Answer:
Commutative Property
Step-by-step explanation:
Additive Identity: If you add a real number to zero or add zero to a real number, then you get the same real number back.
Additive Inverse: When you add the same number but reversed sign, you get 0.
Commutative Property: a + b = b + a
Addition distributive property: a(b+ c) = ab + ac.
In this case, we use the commutative property:
27 + 15 + 3 + 5 = 27 + 3 + 15 + 5.
We know that 27 + 3 = 30 and 15 + 5 = 20, so we get 50 quickly using mental math.
Jeremiah got $65 on birthday and spent some money on 3 video games and was left with $14.
He purchased 3 video games.
Let the cost one one video game be v.
The cost of each video game is same
So the cost of 3 video games is 3v.
Also he is left with $14 after paying for three games.
Hence
3v + 14 = 65
Subtracting 14 from both sides
3v + 14 -14 = 65-14
3v = 51
Dividing by 3 on both sides
v = 51/3
v = 17
Hence the cost of each video game is $17
What do u need help on? It gives u the answer which is X=10/3
Answer:
Step-by-step explanation: in the x's place add 4 to that number and in the y's place subtract 6 from that number:
P= -4,-3
Q= -4,0
R= 1, 0