Factor the expression f(x)=36x^4-49x^2

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

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

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?