Use a=square root 2 b= square root 5 c= square root 10 to work out the value of ac/b give your answer in the simplest form

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Select all the expressions that will include a remainder.