A plane flies horizontally at an altitude of 4 km and passes directly over a tracking telescope on the ground. When the angle of elevation is /4, this angle is decreasing at a rate of /4 rad/min. How fast is the plane traveling at that time?

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2

Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?