Answer:
14
Step-by-step explanation:
13. -0.2
15. -0.1
If you need anymore help let me know!
The slant length of each cable can be calculated using Pythagoras Theorem,
L= √ (8^2+3^2)
= √ (64+9)
= √ (73)
Total length of each cable
T = L + 8/12 + 8/12
= √ (73) + 4/3
Total length of cables required
= 3T
= 3 ( √ 73 + 4/3)
=( 3 √ 73 + 4 ) feet
So this would be yes she does pass the course because 4/5 is bigger than 75
-15/2 is the answer, Hope this helps;)