"If a=b and b=c, then a=c" is a statement of the transitive property of equality. The same property applies to the congruence relation.
Your appropriate choice is
• transitive property
On a paper, the ratio of a line (1D is 1:64 in.),
to get an area, its a line times a line (therefor 2D) and it becomes 1^2:64^2 in.,
which is 1 in:4096 in.
In 1 hour you pick 60 lines, so in 8 hours you pick 60*8 = 480 lines
Answer:
The value of k for the expression to be undefined is 9 .
Step-by-step explanation:
Given as :
The rational expression is written in the form

Now, according to question
The expression to be undefined , denominator should be 0
<u>As,
is infinite ( ∞ ) term and it is undefined , so for expression to be undefined , the denominator should be 0</u>
∴ k² - 18 k + 81 = 0
Or, k² - 9 k - 9 k + 81 = 0
Or, k ( k - 9 ) - 9 ( k - 9) = 0
Or, ( k - 9 ) ( k - 9 ) = 0
Or, ( k - 9 ) = 0 , ( k - 9 ) = 0
∴ k = 9
So, The value of k = 9
Hence The value of k for the expression to be undefined is 9 . Answer
Step-by-step explanation:
Hey there!!
Given,

Comparing it with ax^2+bx+c =0 we get,
a= 1, b= 8, c= -5.
Using formula,

Keep all values,




Taking negative,



Similarly, taking positive,



Therefore, x= (4 + root 21, 4 - root 21).
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>