In her seventh grade pre-algebra class, ms. cornelius gave a standardized exam prepared by the district math department. students' scores on the exam were as follows:
100, 98, 98, 96, 96, 96, 94, 92, 88, 82.
what is the mean score?

94

Step-by-step explanation:

The mean is the average of the numbers,

To find the mean add all the numbers and divide by how many numbers there are i.e count the numbers

In this case lets find the sum;

Sum = 100 + 98 + 98 +96 + 96 + 96 + 94 + 92 + 88 + 82

       = 940

Count the numbers : There are 10 numbers in total.

Therefore, The mean = 940/10

                                    = 94

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 .