A) The rate of change is -40 songs each week, that is because the amount of songs left to be downloaded decrease by 40 each week
B) lets use 2 points of the graph p1(0, 200), p2(1, 160)
calculate the slope:
m = (y2- y1)/(x2 - x1) = (160 - 200)/(1 - 0)
m = -40
now use line equation in form point-slope:
y - y1 = m(x - x1)
y - 200 = -40(x - 0)
y = -40x + 200
Answer:
21
Step-by-step explanation:
You have to find the square root.
Answer:
60,480 is the correct answer.
Step-by-step explanation:
First of all, let us have a look at the <em>formula of factorial of a number 'n'</em>:

i.e. multiply n with (n-1) then by (n-2) upto 1.
<em>Keep on subtracting 1 from the number and keep on multiplying until we reach to 1.</em>
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So,
can be written as: 
Similarly
can be written as: 
Re-writing
:

Now, the expression to be evaluated:

Wait is this the problem?
Y=mx+b // standard form
3x=12-2y
2y=-3x+12
y=-3/2x+12/2
y=-3/2x+6
So the answer is: y = -3/2x+6