Question

1. The square root of 24025 will have _________ digits.
2. Verify the property of x + y = y + x of rational numbers by taking x = −2/ 5 and y = −9 /20
3. Sum of the angles of a hexagon is __________.
4. The cost of 19/4 meters of wire is 171/ 2 find the cost of 2 meters of wire.
5. The sum of two consecutive multiples of 10 is 210. The smaller multiple is _______

Answer 1

Answer:

1. The square root of 24025 will have _________ digits. 3digits

Answer 2

Answer:

Step-by-step explanation:

1. 3 digits

2.

$\frac{-2}{5} + (\frac{-9}{20}) = \frac{-9}{20} +(\frac{-2}{5} )\\ \\\frac{-17}{20} = \frac{-17}{20}$

3. 720°

4.

$\frac{19}{4} m = Rs. \frac{171}{2} \\1 m = \frac{171}{2} * \frac{4}{19}\\ 1m = Rs. 18\\Therefore, Cost of 2m rope = 2*18 = Rs. 36$

5.

$10x + 10x + 10 = 210\\20x = 200\\x = 10\\Therefore, Consecutive multiples of 10 are 100 and 110.\\The smallest multiple according to the question is 100.$