20, you just need to substitute the x value in the equation
(-2)2-7(-2)+10=
=20
Answer:
Step-by-step explanation:
∩
is asking for the intersection of sets
and
, or simply, which numbers can be found in both sets.
The numbers shared between the two sets are
.
Next, we need to union this result with the set
, or simply, combine the numbers in both sets together.
This would result in 
5 by 3
3rd one
there we have to find hypotenuse.
Answer: It would take 8 hours!!
Step-by-step explanation: Hope this helps!! <3