Answer:
Step-by-step explanation:
The trick is to find the radius. The surface area does that.
A =4* pi * r^2
20096 = 4 * 3.14 * r^2
20096 / 4 = 3.14 * r^2
5024 = 3.14 * r^2
5024 / 3.14 = r^2
r^2 = 1600
√r^2 = √1600
r = 40
Now all you do is use r to find the Volume
V = (4/3) * 3.14 r^3
V = (4/3) * 3.14 * 40^3
V = 1.333 * 3.14 * 64000
V = 26796.67
Answer:
Answer: selling price is 63000
Step-by-step explanation:
Farmer bought seeds of ₹45000
Farmer bought fertilizers of ₹5000
Farmer spent on transportation₹25000
Total c.p. of crops is ₹52500
He got a profit of20%
Selling price =?
S.p. =20/100*52500
=10500
S.p.=c.p.+profit
=52500+10500
=63000
13g + 4m = D
g=number of computer games
m=number of magazines
D=$ spent
Answer:
The area of rectangle is 
Step-by-step explanation:
Let
A(2,7)
step 1
The point A is reflected across the x-axis
we know that
The rule of the reflection of a point across the x-axis is
(x,y) -----> (x,-y)
so
A(2,7) ----->B(2,-7)
step 2
The point B is reflected across the y-axis
we know that
The rule of the reflection of a point across the y-axis is
(x,y) -----> (-x,y)
B(2,-7) ----> C(-2,-7)
step 3
The point C is reflected across the x-axis
we know that
The rule of the reflection of a point across the x-axis is
(x,y) -----> (x,-y)
so
C(-2,-7) ----->D(-2,7)
step 4
Find the area of rectangle formed by
A(2,7),B(2,-7),C(-2,-7),D(-2,7)
using a graphing tool
see the attached figure
The area of rectangle is

To change fraction to percentage, x 100
3/25 x 100 =12%