(4, 1) and (6,7)what is the slope

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.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Solve the triangle. a = 21°, c = 105°, c = 5