Answer:
i've been better. how about you?
Explanation:
Answer:
valance electrons
Explanation:
the lines between the atoms represent the number of valance electron. simple isn't it.
Answer:
The percentage of scores higher than 72 is 99.85%
Explanation:
The empirical rule states that about 68% of observations falls within the first standard deviation (µ ± σ), 95% within the first two standard deviations (µ ± 2σ), and 99.7% within the first three standard deviations (µ ± 3σ)
We can use the relationship below
255-σ(61)=72
61σ=255-72
61σ=183
σ=3
The area is as shaded below
The percentage of scores higher than 72 is 99.7%+0.15%=99.85%
What do you want to tell your friend
When the notation is 10^-# you always move whatever the number is to the left of the decimal place
When the notation is 10^+# you always move whatever the number is to the right of the decimal place
2.4 x 10^-4 = .00024
You move 4 units to the left of the decimal place
The standard notation will be .00024