Identify the number that does not belong with the other three. Explain your reasoning. 26.6 repeating 6, square root 48, negativ
2 answers:
The number that doesn't beling is 
.
This is true because all other numbers are rational (i.e., can be written as a fraction), while is an irrational number (i.e., can not be written as a fraction).
This is true because all other numbers are rational (i.e., can be written as a fraction), while
Answer:
The square root of 48 is the only irrational number in that group.
Step-by-step explanation:
A. 26.6 ( repeating 6 ) =
B. = 4√3
C. -51/2 = -25.5 =
D. -55.1
So, we have A, C and D as rational numbers.
Only is an irrational number
Hence, The square root of 48 is the only irrational number in that group.
You might be interested in
Answer:
Volume:
Ratio:
Step-by-step explanation:
First of all, we need to find the volume of the hemispherical tank.
The volume of a sphere is given by:
where
r is the radius of the sphere
V is the volume
Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:
Now we want to find the ratio between the volume of the hemisphere and its surface area.
The surface area of a sphere is
For a hemisphere, the area of the curved part of the surface is therefore half of this value, so . Moreover, we have to add the surface of the base, which is
. So the total surface area of the hemispherical tank is
Therefore, the ratio betwen the volume and the surface area of the hemisphere is