1. The angle of depression from a ship to a submarine is 31 degrees. Once SONAR waves are measured the distance from the ship straight to the submarine is 400 meters. What is the
depth of the submarine?

Which of these triangle pairs can be mapped to each other using two reflections?

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?