Circle x is shown. line segment x y is a radius. line segment y z is a tangent that intersects the circle at point y. a line is drawn from point z to point x and goes through a point on the circle. the length of the line segment from point x to the point on the circle is 8, and the length of the line segment from the point on the circle to point z is 9. what must be the length of zy in order for zy to be tangent to circle x at point y?

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun