What is the value of n? Write your answer as a number only

Hey there!

The value of "n" is 10.

Since the lines on the sides represent congruency of those 2 sides, we also know that angle T is equal to angle S. Since a triangle's angles add up to 180°, we can use the following equation, and solve:

180 = 3.5n + 3.5n + 11n       Add the "n"s

180 = 18n                              Divide both sides by 18

10 = n

Hope this helps! Good luck on your assignment! Have a great day!

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.