Answer:
Step-by-step explanation:
a.
L
=
329.9
c
m
2
;
S
=
373.9
c
m
2
.
b.
L
=
659.7
c
m
2
;
S
=
483.8
c
m
2
.
c.
L
=
659.7
c
m
2
;
S
=
813.6
c
m
2
.
d.
L
=
329.9
c
m
2
;
S
=
483.8
c
m
2
.
Surface Area of a Cone:
In the three dimensional geometry, a cone is a shape that has a circular base and a lateral surface is associated with a vertex and the base.
The height of the cone is the length of a line segment that joins the base to the vertex of the cone.
The radius of the cone is the same as the radius of the base.
Surface area of a cone
(a) Lateral Surface Area
If
l
and
r
are the slant height and radius of a cone then its lateral surface area is given by the formula-
L
=
π
r
l
where
L
is the lateral surface area of the cone
(b) Total surface area
It is the sum of the area of the circular base and the lateral surface area of the cone.
S
=
L
+
π
r
2
S
=
π
r
l
+
π
r
2
Where
S
is the total surface area of the cone
Answer and Explanation:
Given that the radius and slant height of a right cone is
7
c
m
and
15
c
m
respectively
r
=
7
c
m
l
=
15
c
m
So the lateral surface area of the cone-
L
=
π
r
l
L
=
π
(
7
)
(
15
)
L
=
105
π
L
=
105
(
3.14159
)
L
=
329.866
L
≈
329.9
c
m
2
And the total surface area of the cone-
S
=
L
+
π
r
2
S
=
329.9
+
π
(
7
)
2
S
=
329.9
+
49
(
3.14159
)
S
=
329.9
+
153.937
S
=
483.83
c
m
2
So the lateral area and total area of a right cone are
329.9
c
m
2
and
483.8
c
m
2
respectively.
Hello! :)
Answer:
![\boxed{=31}](https://tex.z-dn.net/?f=%5Cboxed%7B%3D31%7D)
<u><em>*The answer should be have a POSITIVE sign!</em></u>
Step-by-step explanation:
PEMDAS
Lesson: Order of operations
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
From left/right.
First, you multiply/divide from left to right.
![24/3=8](https://tex.z-dn.net/?f=24%2F3%3D8)
![8+7*2-15/5+6*2](https://tex.z-dn.net/?f=8%2B7%2A2-15%2F5%2B6%2A2)
![7*2=14](https://tex.z-dn.net/?f=7%2A2%3D14)
![8+14-15/5+6*2](https://tex.z-dn.net/?f=8%2B14-15%2F5%2B6%2A2)
![15/5=3](https://tex.z-dn.net/?f=15%2F5%3D3)
![8+14-3+6*2](https://tex.z-dn.net/?f=8%2B14-3%2B6%2A2)
![6*2=12](https://tex.z-dn.net/?f=6%2A2%3D12)
![8+14-3+12](https://tex.z-dn.net/?f=8%2B14-3%2B12)
Then, you add/subtract from left to right.
![14+8=22](https://tex.z-dn.net/?f=14%2B8%3D22)
![22-3=19](https://tex.z-dn.net/?f=22-3%3D19)
![19+12=31](https://tex.z-dn.net/?f=19%2B12%3D31)
<u><em>Final answer is 31.</em></u>
Hope this helps!
Have a nice day! :)
:D
-Charlie
Thanks!
The answer for the exercise shown above is the last option (Option D), which is:
D. log base 5 of 56
The explanation is show below:
1. You have the following logarithm expresssion:
<span>log5(4*7 )+log5(2)
</span>
2. By the logarithms properties, you can rewrite the logarithm expression as following:
log5(28)(2)
log5(56)
3. Therefore, as you can see, the answer is the option mention before.
Answer:
Answers are here in this file
cutInk/Otj3C
If the graph is out of 100 people that means one person is one percent. So 22% of adults like basketball and 15% like baseball, add the two together and you get 37 percent