The radius of a circle is 8 centimeters. What is the area of a sector bounded by a 180° arc? Give the exact answer in simplest form. Will mark brainliest!

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

What is fraction that is equivalent to 3/8