Which number produces an irrational number when multiplied by -1.25 a. 3/4 b. 5.21 c.-0.454545 d. sqaure root 17

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

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

Which graph represents the equation y =4x