7.5
Using the Pythagorean theorem you can determine this answer! Let me know if I’m wrong!
Answer:
C
Step-by-step explanation:
Here is your answer:
6.78 rounded to the nearest tenth = 7.00 because the 7 in 6.78 is greater then five.
8.21 rounded to the nearest tenth= 8.00 because the 2 in 8.21 is NOT greater than five.
Multiply both sides by x so that x will be in the numerator