Question

1. Order the following sets of numbers from least to greatest: 15, radical symbol 18 , 2𝝅
2. Order the following sets of numbers from least to greatest: 250^0, √525, (7^2-1)
3. Di and Leo both write the decimal 2.55555555.. As a fraction.
Di’s fraction: 2 55/100
Leo’s fraction: 2 55/99

Who is correct and why?

Answer 1

Leo is correct.

In decimal form, 2.55555555.. can be expressed as the repeating decimal 2.55. The pattern repeats indefinitely, so it can be represented as the fraction 2 55/99. Di's fraction, 2 55/100, is not equivalent to the decimal 2.55555555..

Answer 2

Order the following sets of numbers from least to greatest: 15, radical symbol 18 , 2𝝅

Answer 3

To order these sets of numbers from least to greatest, we need to compare their values.

First, let's determine the approximate values of each number:

15 ≈ 15
√18 ≈ 4.2426
2𝝅 ≈ 6.2832

From least to greatest, the order is:
15, √18, 2𝝅

Answer 4

Order the following sets of numbers from least to greatest: 250^0, √525, (7^2-1)

Answer 5

To order these sets of numbers from least to greatest, we need to compare their values.

First, let's calculate the values:

250^0 = 1
√525 ≈ 22.9129
(7^2-1) = 48

From least to greatest, the order is:
1, √525, 48