Answer:
0.6 km
Step-by-step explanation:
(3 km)/(5 friends) = 0.6 km/friend
Each person should lead for 0.6 km.
Answer: Ana will hit the water after 3 seconds.
Step-by-step explanation:
The exercise gives you the following function which models Anna's height above the water (in meters) after diving "x" seconds:

You can rewrite the function with
:

In order to calculate the number of seconds Ana will hit the water after diving, the procedure is:
- Substitute
into the function:

- Solve for "x".
By the Zero Product Property, you know that if
, then
or
.
Then you get:

- Choose the positive value (
)
Then, Ana will hit the water after 3 seconds.
Answer:
50/100, simplified to 1/2
Step-by-step explanation:
50% means half of 1.
1/2=.5 which is half of 1.
1=100%
.5=50%
1/2=50%