What is 50% of 174.95?Thanks.

Which graph has a rate of change of zero

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d.c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft