Answer:
500+6
Step-by-step explanation:
You multuply what is in the parentheses, so you do 5×100 then you do 6×1
The function would look like: (4x)+160 where x is the mph over the speed limit
So if you Input 8 it would be (4*8)=160, which would be: $192
Answer: -3(x^2 + 1)(x-5)
Explanation: -3x^3 + 15x+3x -15
Factor by grouping: -3x^2(x-5) +3(x-5)
Combine: (-3x^2 +3)(x-5)
Factor by GCF: -3(x^2 +1)(x-5)
Set equal to zero: (x^2 +1)=0
(x+5)=0
Solve: x=5, x=square root of 1
You have the following expression given in the problem:
f(x) = x³ – 2x²<span> – x + 2
Therefore, to find the roots, you must apply the proccedure shown below:
1. You have:
0 </span><span>= x3 – 2x2 – x + 2
2. Then, when you factor, you obtain:
(x-2)(x-1)(x+1)=0
3. Therefore, you have that the roots are the following:
x1=-1
x2=1
x3=2</span>
-14.13
hopefully i’m right
