In ΔXYZ, x = 24 inches, y = 43 inches and z=47 inches. Find the measure of ∠Y to the nearest 10th of a degree.

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

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?