Which of the following sets contains an element that cannot be classified as rational? a.){1/2, 5.5, 13 3/4, -4.5} _b.){0, 0.9, 43/3, -2}c.){-13.76, -5/2, 9/0, 95}d.){2 1/2, -7, 0.2323, 0/3}

9514 1404 393

  (C)

Step-by-step explanation:

Set C contains the element 9/0, which is undefined. That element cannot be classified as rational.

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

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value