Student practice hours

name mon tues wed thu fri
mick 4 4 3 4 4
ashley 4 3 2 4 5
aj 4 4 4 4 3
isabella 4 5 3 4 4

all clark-atlanta band students are required to document their practice time in the band hall. the band averages 4 hours of practice per day during the week. four students' logs are chosen at random. based on the table above, find the difference between the mean of the sample and the entire band.
a.
the difference is 0.9 hours.
b.
the difference is 0.2 hours.
c.
the difference is 0.05 hours.
d.
the difference is 0 hours.

answer: 20

step-by-step explanation:

is only a line? i think so

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .