according to the partial construction shown, what is the next step in constructing a line perpendicular to a point off a line?
with compass at p, draw an arc above a.
with compass at p, draw an arc below a.
with compass at p, draw an arc that intersects a in one place.
with compass at p, draw an arc that intersects a in two places.

1. are the triangles similar and if so why? what is the value of x? show your work.

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.