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Cubes and Cube Roots Video Lessons
Evaluate:
3
√
27
x
3
y
9
(1m 42s)
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1.
How to find cubes of numbers by multiplication method
2.
Finding Cube Roots of Numbers by Factor Method
3.
Reading the cube of a given number directly from the mathematical table
4.
Read the cube roots of given numbers directly from the mathematical tables
5.
Evaluate:
3
√
64
6.
Evaluate:
3
√
125
7.
Evaluate:
3
√
3375
8.
Evaluate:
3
√
27
64
9.
Evaluate:
3
√
0.512
10.
Evaluate:
3
√
2
93
125
11.
Evaluate:
3
√
a
3
b
3
12.
Evaluate:
3
√
x
6
y
6
13.
Evaluate:
3
√
w
6
y
3
14.
The volume of a sphere is
4
3
p
r
3
where r is its radius. Find the radius when the volume is 38.808
c
m
3
. (Take
π
=
22
7
).
15.
The volume of the material used to make a cube is 1 728
c
m
3
. Find the length the cube.
16.
The volume of water in a measuring cylinder is 200
c
m
3
. When a cube is immersed into the water, the cylinder reading is 543
c
m
3
. Find: (a) the volume of the cube. (b) the length of the side of the cube.
17.
A metallic cuboid measuring 16 cm by 8 cm by 4 cm was melted. The material was then used to make a cube. What was the length of the cube?
18.
Evaluate:
3
√
27
x
3
y
9
19.
Find:
3
√
0.064
×
125
343
20.
Find:
3
√
(
x
-
y
)
(
x
+
y
)
, when x=76 and y=49
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