In ΔCDE, the measure of ∠E=90°, DE = 84 feet, and EC = 13 feet. Find the measure of ∠C to the nearest tenth of a degree.

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

X-10/4 when x = –18 a 7 b –2 c –7 d 2

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me