A. Because the net is an unfolded version of the shape, the number of edges and faces increase. B. Because the net is an unfolded version of the shape, the number of edges and faces decrease.
C. Because the net is an unfolded version of the shape, the number of vertices and edges increase.
D. Because the net is an unfolded version of the shape, the number of vertices and edges decrease.

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

no

step-by-step explanation: