The mean and median of this date set is;
Mean: 44.25
Median: 7
Date set in order: 2,4,5,7,7,8,9,18
Answer:
800
Step-by-step explanation:
since 300 divided by 15 is 20.
20 x 40= 800
Answer:
the answer is DBC=90°
because the midpoint of the perimeter of quadrilateral is B
Got you. So we will use the basic formula for the area of a rectangle and insert variable values. (^_^)
Area= Width(Height) ----------- Insert values of width and height [width = (x-1)
, height = (x+9)]
Area= (x-1)(x+9) ) -------------- Then expand if needed?
= x² +8x -9
That would be 12x^3-16x^2+3x-4
