the mean is adding all them together and dividing by how many there are
2+3+5+6+1+10 = 27
there are 6 numbers so 27/6 = 4.5
mean = 4.5
Answer:
this only goes to the thousanths.
Step-by-step explanation:
T2 = t1 - 4 = 9 - 4 = 5
t3 = 5 - 4 = 1
The common difference = -4 so:-
The sequence is 9, 5, 1, -3, -7 ....

Let's solve ~
Equation of directrix is : y = 1, so we can say that it's a parabola of form : -

- h = x - coordinate of focus = -4
- k = y - coordinate of focus = 5
- a = half the perpendicular distance between directrix and focus = 1/2(5 - 1) = 1/2(4) = 2
and since the focus is above the directrix, it's a parabola with upward opening.





So, to do this, you would multiply inside the radicals. The answer would be the fourth root of x^4, or x.