The mean increases. When Deleware (2,000: 2) is included the mean must be divided by 9 instead of 8.
If the scale factor is 1/5, then the area of the preimage is multiplied by <u>0</u><u>.</u><u>2</u> or <u>1</u><u>/</u><u>5</u> to calculate the area of the new image.
Answer:
77cm
Step-by-step explanation:
Area of a rectangle=L×B
So
7×11=77cm
Since we know the polygons are similar, the side length ratio of each side must be equal.
13/5 = x/10
Multiply both sides by 10
x = 26
That's your answer. Have a nice day! :)