Jalen has a scale model of a train. 2 centimeters in the model represents 3 feet in a real train.
The height of the model train is 10.2 centimeters.
What is the height of the real train?

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

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.