In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl or an A student?

0.634 is the required probability.

Step-by-step explanation:

We are given the following in the question:

Total number of students = 30

Number of girls = 17

Number of boys  = 13

Number of A students  = 5

Number of A students that are girl = 3

We have to find the probability choosing a girl or an A student.

We evaluate:

0.634 is the probability of choosing a girl or an A student.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3