Question

both x and y vary inversely with each other when x is 10 , y is 6. which of the following is not a possible pair of corresponding values of x and y

1)- 12 and 5

2) - 15 and 4

3) 24 and 2.4

4)- 45 and 1.3​

Answer 1

how can you find the value of 5

$\sqrt{2 } - \sqrt{8}$