Let
equals to amount charged for downloading individual songs
equals to amount charged for downloading an entire album.
Solve the system for
:
Solving the system for
is unoptional since we already have the answer we've been looking for. Your answer is
.
Answer:
2(2+5)
Step-by-step explanation:
<span>x^2+15=8x
</span><span>x^2-8x=-15
x^2 - 2 (x)(4) =-15
adding 16 on both sides
</span>x^2 - 2 (x)(4) +16=-15+16
x^2 - 2 (x)(4) + 4^2= 1
(x-4)^2=1
taking square root on bothsides x-4 = +-1
so x-4=1 or x-4=-1
x-5 or x=3
Answer:
Step-by-step explanation:
Let the graph is of a function denoted as y = .03(x²)(x²-25)
Then we can solve the function as y = .03(x²)(x-5)(x+5) ---(As we know (a²-b²) = (a-b)(a+b))
Now we can find the value of y by putting the value of x in the given equation.
Here this function is defined at x = 0,-5 and 5.
For the value of x = 0 y = 0
for x = -5 y = 0 and for x = 5 y = 0
Here the points (0,0) (-5,0) & (5,0) lie on the graph which is true for first graph.Therefore graph number one is the graph for .03(x²)(x²-25)
18 because that’s the greatest common factor for all of them