Which relationship describes angles 1 and 2 -vertical angles
-supplementary angles
-adjacent angles
-complementary angles

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?