Given that cos(π/7) ≈ 0.9, name three additional angles cosine is approximately equal to 0.9

Measures of the angle of r, 31 s (x+4) t (3x+9)

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

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?