Question

what is B equal to? i need this for my math revision and i dont get it

Answer 1

here b can be any positive number which is more than 0. but the smallest no. b is possible to be is 1 .

-2 ≤ 10b-5

-2 ≤ 10×b-5

-2 ≤ 10×1-5

-2 ≤ 10-5

-2 ≤ 5 which is true because -2 is smaller than 5.

hope this helps you...