Answer:
E(X) = $2.5
P(Worst than Average) = 0.072
Step-by-step explanation:
I have solved this problem on paper. (Attached)
The initial population of the town is 7000, rate of reduction is 3%, thus the function modeling the new population will be given by:
f(t)=7000(0.97)^t
thus since our t=0 is in the year 2010, in the year 2019, t=19. The new population will be:
f(19)=7000(0.97)^19
f(19)=3,924.29
Thus the estimated population will be 3,924.29
644 is 80% of the regular price, so price=644/0.8 = 805 $
Answer:
perpendicular lines
Step-by-step explanation:
when the two equation are written in slope intercept form:
y = -4x -7
y = 1/4x -2
the slopes are opposite reciprocals which means they are perpendicular
Answer:
no, I believe the correct answer would be D. (-4, 4)