probability of getting red ball from urn 1 is 20% probability from urn 2 is 30% what's the probability of a red ball from urn 1?

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Abig remake 100 loaves of bread in one day how many loaves does the bakery make in 6 days

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.