Answer:
8000
Step-by-step explanation:
Total number of homes in given data is 7+33+56+42+12 = 150
Now out of 150 there is 12 homes who have 4 or more phones
Let's set up proportions
150 / 12 = 100,000 / X
x=100000×12 /150
X=8000
<span>
4x^2-8x-12 =
(x -3) * (x +1)
4x^2-24x+32
</span><span>(x -4) * (x -2)
</span>Factored Form
(x -3) * (x +1) * <span>(x -4) * (x -2) = 0
x = 3
x = -1
x = 4
x = 2
All four roots are real numbers and so the graph crosses the x-axis four times. The graph of the equation would resemble a "W".
</span>
A that a that is your answer iu hoped it helped you and its right
Answer:
a
Step-by-step explanation: