Answer: 21.5×10^−4
Step-by-step explanation: I think this is right I don't exactly rememberthe right formula
I put it into a calculator and then hopefully into scientific notation.
Step-by-step explanation:
Let m = man's age right now
d = daughter's age right now
m-2 = 6(d-2) => m = 6d -12 +2 = 6d-10
m+18 = 2(d+18) => m = 2d+36-18 = 2d+18
6d-10 = 2d+18
4d = 28
d = 7
m = 32
Answer:
-1
Step-by-step explanation:
2 * -1 = -2
Then, -2 / 2 = 1
Answer:
We expect 95% of the data to fall between 4.9 and 8.1
Step-by-step explanation:
The 68-95-99.7 rule says that 95% of the data will lie between 2 standard deviations below the mean, and 2 standard deviations above the mean.
2 × SD = 1.6
6.5 - 1.6 = 4.9
6.5 + 1.6 = 8.1
We expect 95% of the data to fall between 4.9 and 8.1
