Find XZ if Y is the midpoint of XZ, XY = 2a + 11, and YZ = 4a - 5

XZ=54

Step-by-step explanation:

X___Y___Z

XY= YZ

2a+11=4a-5

4a-2a= 11+5

2a=16

a=16/2

a=8

XY=2a+11=2(8)+11=16+11=27

YZ=4a-5 = 4(8)-5=32-5=27

XZ=XY+YZ =27+27=54

I hope I helped you^_^

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !