Answer:
8
Step-by-step explanation:
The diagram shows 8 different endpoints, so there are 8 different possible outcomes.
You can list all outcomes:
HHH
HHT
HTH
HTT
THH
THT
TTH
TTT
where H - head, T - tail
Answer:
D. The input force is equal to the output force
Step-by-step explanation:
A pulley changes the direction of the applied force, but does not change its magnitude. The mechanical advantage is the ratio of output force to input force, so must be 1 when the force magnitude does not change.
we are given

we have to solve it by completing square method
step-1: Move 5 on right side


step-2: Break middle term

step-3: Add 6^2 both sides


step-3: Solve for x

we wil get two values
First value is

add both sides 6


Second value is

add both sides 6


so, solutions are

.............Answer