What is the domain of this relation? {-3, 3, 5, 9}

{(3,5), (5,16), (-3,5), (9,5)}

{-3, 3, 5, 9, 16}

{5, 16}

Ammonia molecules have three hydrogen atoms and one nitrogen atom. how many of each atom arein five molecules of ammonia

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

∠a and ∠ b are complementary. if m∠ b = 80°, what is the measure of ∠ a? 10° 80° 90° 100°