Answer:
Option 3
Step-by-step explanation:
f inverse =
Put the numbers in order from smallest to largest:
21,34,45,53,71,88
Since there are an even amount of numbers you must take the middle two and find the average(add them together then divide by 2)
45+53=98
98/2=49
Answer:
x = 3.5
Step-by-step explanation:
The angle bisector CD divides the segments on one side into the same proportion as the segments on the other side of it.
... x/5 = 4.2/6
... x = 5·(4.2/6) . . . . multiply by 5
... x = 3.5