Answer:
Step-by-step explanation:
If Y is between x and z, then XY+YZ = XZ. Given XY= 5.5, YZ= 2C, XZ=8.9
substituting the given values into the firmula to get c we will have;
5.5+2C = 8.9
Subtract 5.5 from both sides
5.5+2C-5.5 = 8.9-5.5
2C = 3.4
Divide both sdies by 2;
2C/2 = 3.4/2
C = 1.7
Since YZ = 2C, substitute C = 1.7 into the function
YZ = 2(1.7)
YZ = 3.4
