Answer:
7
Step-by-step explanation:
This is because
use formula n/2 +1 th term for odd number of observations
Answer:
x = 1 and y = 5
Step-by-step explanation:
Use substitution because you know that x = y - 4, and plug this into the first equation to get -10(y - 4) + 3y = 5, or -10y + 40 + 3y = 5. This is -7y = -35 so y = 5. Plug this into the 2nd equation to get that x = 1 and y = 5.
The total angle sum of a triangle is 180°
As such, 180= 78 + 2s +4s
102= 6s
s=17
25 there you go the answer and yourwelcome
