Return to the credit card scenario of exercise 12 (section  2.2), and let c be the event that the selected student has an american express card. in addition to p(a) = .6, p(b) = .4, and p(a >
b.= .3, suppose that p(c) = .2, p(a  > c)  = .15, p(b >
c.= .1, and p(a > b >
c.= .08.
a. what is the probability that the selected student has at least one of the three types of cards?
b. what is the probability that the selected student has both a visa card and a mastercard but not an american express card?
c. calculate and interpret p(b u
a. and also p(a u b).

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

answer: i believe it is c

step-by-step explanation:

because 5+4=9 so it would be 3^9