Nine disks are numbered from 1 to 9 and placed in a box. One disk is
selected at random and not replaced. Another disk is randomly selected.
What is the probability of selecting two even numbers?

The probability of selecting two even numbers is 1/6.

Step-by-step explanation:

Nine disks are numbered from 1 to 9 and placed in a box.

The total number of disks = 9

The question is asked to find the probability of selecting two even numbers.

The number of even number disks = 4 disks.

To find the probability of selecting two even numbers without replacement :

P (first even disk) = No.of even disks / Total disks

⇒ 4 / 9

P (second even disk) = No.of remaining even disks / Total disks

⇒ 3 / 8

P (two even disks without replacement) = 4/9 × 3/8

⇒ 12 / 72

⇒ 1 / 6

∴ The probability of selecting two even numbers is 1/6.

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.