Abeach has two floating docks. one is 650 meters east of the lifeguard stand. the other is 60° southeast and 750 meters from the lifeguard stand. the distance between the docks   rounded to the nearest meter. a) 589 b) 705 c) 792 d) 861

Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Distance between the lifeguard and the first beach = 650 meters

Distance between the lifeguard and the second beach = 750 meters

As shown in the figure below :

We will use "Cosine formula ":

We need to find the distance between the docks is given by

Hence, Option 'B' is correct.

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.