For sailboats to travel into the wind, it is sometimes necessary to tack, or move in a zig zag pattern. A sailboat travels 5 km due North and then 5 km due West. From there the boat travels 4 km due North and 4 km due West. How far is the boat from it's starting point? Express your answer as a mixed radical.

2

step-by-step explanation:

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source:  

p< -25

t> 12

r> 17

step-by-step explanation: