Answer:
I believe both are 80 or 40
Step-by-step explanation:
Answer:
30454
Step-by-step explanation:
subtraction on a calculator
42812-12358=30454
Answer:
210=85+125-x+25
x= 235-210
x=25 failled in both
Step-by-step explanation:
-4.4(s - 2) + 6.9s = 14.8
Distribute -4.4 into the parenthesis:
-4.4s + 8.8 + 6.9s = 14.8
Combine like terms:
2.5s + 8.8 = 14.8
Subtract 8.8 from both sides of the equation:
2.5s + 8.8 - 8.8 = 14.8 - 8.8
2.5s = 6
Divide both sides by 2.5:
2.5s/2.5 = 6/2,5
s = 2.4
s =
Why not look up "standard deviation" yourself, to be sure? But yes, the std. dev. is the sqrt of the variance.
