Answer:
Selecciona la alternativa donde NO se ocupan números enteros
a) Recorrido de un ascensor.
b) La temperatura ambiental.
c) La talla de zapatos
Answer:
The answer to your question is 
Step-by-step explanation:
Here, there is a difference of squares, so just solve it and simplify
Multiply the binomials
= 1 - 
Simplify
= 
=
Answer:
Options A, B and D
Step-by-step explanation:
∠ATN and ∠RTD are vertical angles.
∠RTP and ∠ATB are vertical angles.
∠DTN and ∠ATP are vertical angles.
Answer:
990 ways
Step-by-step explanation:
The total number of automobiles we have is 11.
Now, what this means is that for the first position , we shall be selecting 1 out of 11 automobiles, this can be done in 11 ways( 11C1 = 11!/(11-1)!1! = 11!/10!1! = 11 ways)
For the second position, since we have the first position already, the number of ways we can select the second position is selecting 1 out of available 10 and that can be done in 10 ways(10C1 ways = 10!9!1! = 10 ways)
For the third position, we have 9 automobiles and we want to select 1, this can be done in 9 ways(9C1 ways = 9!/8!1! = 9 ways)
Thus, the total number of ways the first three finishers come in = 11 * 10 * 9 = 990 ways
