Look at the triangle below which of the following represents two of the angle measures of the triangle

x = 7

two of the angles 60 and 80

Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180

8x + 4 + 6x - 2 + 10x + 10 = 180 add like terms

24x + 12 = 180 subtract 12 from both sides

24x = 168 divide both sides by 24

x = 7 replace x with 7 in the equation to find the angle measures

6x - 2 = 40

10x + 10 = 80

8x + 4 = 60

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.