Answer:
i believe x is 12.
Step-by-step explanation:
three times three is nine, so you multiply four by three to get 12. you can also check your answer by dividing 12 by three and 9 by three to get 4,3 so the answer is correct.
Irrational, because it is non-terminating and non-repeating!
Answer:
x = -5 or x = -12
Step-by-step explanation:
x^2+17x+72=12
Subtract 12 from both sides.
x^2+17x+72-12 = 12-12
x^2+17x+60=0
Then factor the left side of the equation
(x+5)(x+12) = 0
Then set the factors equal to 0
(x+5)=0 or (x+12)=0
Therefore x=-5 or -12
Given:


To find:
Whether it is possible that Line AB intersects line CD.
Solution:
We have,


The angles
and
are same sided interior angles.
If two lines are parallel and a transversal line intersect them, then the same sided interior angles are supplementary angles and their sum is 180 degrees.



So, the lines AB and CD are not parallel to each other.
Therefore, the intersection of lines AB and CD is possible.