- is not included as a rational number !
<u>Step-by-step explanation:</u>
Here we have , following expressions & we need to identify which of the following is not a rational number . Let's find out:
We know that , Rational Number : A number which can be expressed in form of p/q , where q is not equal to zero !
Here Expressions are:
- :
Let's evaluate this expression
⇒
⇒
Therefore , It is a rational number ! .
- :
Let's evaluate this expression
⇒
Therefore , It is a rational number ! .
- :
Let's evaluate this expression
⇒
⇒
Therefore , It is a rational number ! .
- :
Let's evaluate this expression
⇒
⇒
Therefore , It is not a rational number , as pi is included ! .
Answer:
length = 2x = 2(9) = 18 yds
Step-by-step explanation:
Let width = x
Let length = 2x
Area = 162 yd2
length × width = Area
2x(x) = 162
2x2 = 162
Divide by 2 on both sides of equation.
x2 = 81
Square-root both sides of equation to undo the exponent.
x = √(81)
x = 9
Substitute this x value into the initial variables.
width = x = 9 yds
length = 2x = 2(9) = 18 yds
The answer to this mathematical question is 3