easy peasy,
1.
Note : i took the whole fraction in square root because they had the same power i.e. ½, had it been a square root and cube root, you could haven't done that.
2ⁿᵈ Method
or you can simplify the exponents from the beginning,
basically, it's all about properties of exponents, both methods are same.
2.
2ⁿᵈ Method
note,
simplify the exponents first, by the property:
3.
4.
5.
can't plot the graph here, but if you know the graph of the vertex just shifts at
here's the image from Desmos
6.
I don't want to, actually I forgot it. but even if I knew, I wouldn't have done that. I dislike statistics.
7. I think mean best describes the data among Mean, median and Mode. I can't explain.
Mean is average value,
mode is the data value which occurs the most in data or alternatively, whose frequency is the highest
Median is the middle value of an ordered data (in ascending order)
for odd number of observations, median is the
term
and for even number of observations median is the mean of term and term,
that is, add both terms and divide by ,
here is the total number of observations.
Clearly, Mode is here,
arrange the data in ascending order,
terms are even so, median =
for mean,
8.
8.given that you ran miles
miles let, day,
you want the mean miles ran of the these 4 days to be 4
so,
hence, you should run 5 miles to make the mean of 4 miles per day for these 4 days.
9. I don't know what box-and-whisker is
10. I don't know what box-and-whisker is
hope this is clear Enough.