1 integers
2 rational
3 whole numbers
4 real numbers
Answer:
90
Step-by-step explanation:
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.
Answer:
1st Equation: 0.95 x 15 answer if needed: 14.25
2nd Equation: 15 - 0.25 answer if needed: 14.25
Step-by-step explanation:
1st: 100% would be 1, so subtract 0.05 (5%) from that to get 0.95 (95%), then multiply that by the total amount of money (undiscounted)
2nd: Find the original price. Get the the discount percentage. Calculate the savings. Subtract the savings from the original price to get the sale price
Answer:
84
Step-by-step explanation:
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