Juan is a lifeguard and spots a drowning child 50 meters along the shore and 40 meters from the shore to the child. Juan runs along the shore for a while and then jumps into the water and swims from there directly to the child. Juan can run at a rate of 4 meters per second and swim at a rate of 1.1 meters per second. How far along the shore should Juan run before jumping into the water in order to save the child? Round your answer to three decimal places.

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

step-by-step explanation:

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step-by-step explanation: