By definition, the volume of a sphere is:
Where,
r: sphere radio
Substituting values we have:
Rounding the result to the nearest tenth:
Answer: the sphere's volume is: 
Step-by-step explanation:
This is the answer for I)
Just use Pythagorean theorem formula to the tye hypotenuse.
Answer:
20%
Step-by-step explanation:
52 of 260 can be writen as:
52
260
Multiply both numerator & denominator by 100
52
260
×
100
100
=
20
100
= 20%
If you are using a calculator, simply enter 52÷260×100 which will give you 20 as the answer.
Answer:
336
Step-by-step explanation:
Required Formulas:-
1. Number of ways to select x things out of n things = ⁿCₓ
2. Number of ways to arrange n things when a things and b things are similar = n!/(a!*b!)
Since we have to choose 8 colors and we are having 3 different colors, it is only possible when we select 2 different colors (e.g. 5 red and 3 blue). To find all possible ways we will have to find all unique arrangements of selected color.
Using formula (1), number of ways to select 2 colors out of given 3 colors = ³C₂ = 3
Using formula (2), finding all unique arrangements when 5 stripes are of one color and 3 stripes are of second color = 8!/(3!*5!) = 56
Suppose, we can choose 5 stripes from red color and 3 stripes from blue color or 5 strips from blue color and 3 strips from red color. So there are 2 possibilities of arranging every 2 colors we choose .
∴ Answer=3*56*2 = 336
Answer:
Comelia is correct.
Step-by-step explanation:
Rational numbers are those whole can be represented as a fraction.
=> Every fraction is a rational number.
Comelia Says:
All Whole Numbers are Rational Numbers
=> Example: 3 = rational number
=> 3 can be represented as a fraction
=> 30/10 = 300/100
So, Comelia's statement is correct.
Christopher Says:
All Rational Numbers are Whole Numbers
=> Example: 1/2 = Whole Number
=> 1/2 is a fraction
=> 1/2 = .5
=> .5 is not a whole number.
Whole numbers don't have numbers after the decimal point.
So, Christopher's statement is incorrect.
