Rectangle ABCD had dimensions 18cm x 7cm. A line AE is drawn so that E bisects DC. A) Draw this rectangle
B) how long is AE
C) evaluate angle DEA

56

step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8