The second angle of a triangle is three times as large as the first. the third angle is 20 degrees less than the sum of the other two angles. find the measure of the first angle.

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Give me the equations of two lines that have the same slope but are not parallel.