Emma is a lifeguard and spots a drowning child 30 meters along the shore and 50 meters from the shore to the child. Emma runs along the shore for a while and then jumps into the water and swims from there directly to the child. Emma can run at a rate of 4 meters per second and swim at a rate of 1 meter per second. How far along the shore should Emma run before jumping into the water in order to save the child

c. 16 units

step-by-step explanation:

mark brainliest and have a great day!

answer: it is d

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560