You fly a hot air balloon 1.5 miles above the ground. What is the measure of arc BD, the portion of Earth that you can see? Round your answer to the
nearest tenth (Earth's radius is approximately 4000 miles.)

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

Acircle has a diameter of 10 what is the area of the circle? use 3.14 for pi. round to the nearest hundredth