Plz i hate math... A giraffe can run up to 46.93 feet per second. How far could a giraffe run in 1.8 seconds?

84.474 feet

Step-by-step explanation:

The reason you can use simple multiplication is because of the units:

46.93 ft/sec x 1.8 sec would equal 84.474 ft ⋅ sec

However, the seconds cancel out, leaving you with just the distance traveled.

The reason the answer is 84 instead of 84.474 is because the number 1.8 only contains two significant figures.

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