Yuki weighed several soil samples, each filling a quarter liter measuring cup. The distribution of masses has a mean of 215 g and a standard deviation of 60 g.
After recording her measurements, Yuki realized that she had forgotten to subtract the mass of the
measuring cup, which is 20 g.
What will be the mean and standard deviation of the distribution of corrected measurements?
Choose 1
Mean: 195 g
Standard deviation: 40 g
B
Mean: 195 g
Standard deviation: 60 g
Mean: 215 g
Standard deviation: 40 g

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet

5.762159

step-by-step explanation:

it would be 9 because when it is the nine is over five so that would mean it rounds up to 90 or 9