Answer:
i dont know sorry
Step-by-step explanation:
180(n-2)=157.5n
180N-360=157.5n
180N-157.5n=360
22.5N=360
N=360/22.5
N=16
Answer:The mean absolute deviation of the set of data is
2.24
.
x² + 6ax + 4bx + 5a² - 5b²
(x+5a+5b )(x+a-b)
x² +a x -bx +5ax + 5a² -5ab + 5bx + 5ab -5b²
