Answer:
(x+6)*(x+6)
Step-by-step explanation:
We can see that 100 is greater than 20.
So we insert the greater than symbol.
And the greater than symbol is >, note the two strokes faces the bigger number
100 > 20
I hope this explains it.
I'm not sure what the question is but I think your asking 150-85=65
Answer:
2.42
Step-by-step explanation:
standard deviation= sqrt(variance)
Variance=E[X2] - E[X]2
E[X] = sum(X)/n=35/9, so E[X]2 = 1225/81
E[X2] =sum(X2)/n = 189/9 = 170/81
Variance= 476/81
Standard deviation = sqrt(476/81) ~2.42
