Answer:
Length = 27 metresWidth = 9 meters
Step-by-step explanation:
D/20=20/15
d=400/15
d=80/3
d=26 2/3 miles
Step-by-step explanation:
When b = 5,
4b² = 4(5)² = 4 * 5 * 5 = 100.
Answer:
Tables are essentially the source for all the charts. They are best used for comparison, composition, or relationship analysis when there are only few variables and data points. It would not make much sense to create a chart if the data can be easily interpreted from the table.
The tables help us to compare the values of those two sets of the data that have been presented in different ways.
We have to prove that 
is irrational. We can prove this statement by contradiction.
Let us assume that is a rational number. Therefore, we can express:
Let us represent this equation as:
Upon squaring both the sides:
Since a has been assumed to be rational, therefore, 
must as well be rational.
But we know that 
is irrational, therefore, from equation 
the expression must be irrational, which contradicts with our claim.
Therefore, by contradiction, is irrational.
