If two congruent angles form a linear pair, then

a.
one angle is acute and the other angle is obtuse

b.
they are both right angles

c.
they are both acute angles

d.
they are both obtuse angles

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

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?