Answer:
3026
30
Step-by-step explanation: Average sum of the female and male's test score is the sum of expected value of each gender:

Assuming x represents the random male selected and y represents the random female selected:

3026
The average sum of their scores is 3026.
Average difference is the difference between the expected value (mean) of each gender:

1528 - 1498
30
The average difference of their scores is 30.
Use Pythagoras theorem

Two triangles are similar

(6+3)*12/2 - 6*8 /2 = 30
I think it’s the first one is not sure tho
Answer:
1/3+4/x-2=6
Step-by-step explanation:
your is answer 6
Answer:
the angle of this is 80 all havevtobdo is add all the sides of the angle