Find the y-intercept of the folowing equation. Simplify your answer

19x + 8y=7

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

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Subject: geometryneed with 6 and 7