Answer:
The answer is irrational
Step-by-step explanation:
we know that
The area of a square is given by the formula

where
b is the length side of the square
In this problem we have

substitute in the formula

take the square root both sides

simplify

Remember that
A <u><em>Rational Number</em></u> is a number that can be made by dividing two integers
so
The length side is not a integer
therefore
The answer is irrational
The sequence is not arithmetic
Answer:
she spends 8.90 dollars for the music
Step-by-step explanation:
you just multiply them
Answer:

Step-by-step explanation:
Hi,
We know that
P(A or B)=P(A)+P(B)-P(A and B)
so P(B)= P(A or B) - P(A) + P(A and B)
so
P(B) = 0.5 - 0.4 + 0.2 = 0.3
thanks