Answer:
4:20
Step-by-step explanation:
because there are 20 teachers in all and 4 science teachers so your chances of getting a science teacher are 4 out of 20
<span> For this case, the first thing we must do is define variables.
We have then:
x: number of devices.
Y: plan charge
For the current plan we have:
</span>

<span> For the new plan we have:
</span>

<span> Since we want the new plan to be smaller than the current plan, then we have:
</span>

<span> From here, we clear the value of x:
</span>

<span>
Answer: x <18 Note: The graph is correct</span>
We need to cancel out the discontinuity in x = 4
In order to do that, factorize the numerator:
5x⁴ - 20x³ = 5x³(x-4)
This way, your function will be:
f(x) = <span>5x³(x-4) / (x-4)
and the two parentheses cancel out, leaving
</span>f(x) = <span>5x³
</span>
which at x = 4 gives:
f(4) = <span>5·4³</span> = 5 · 64 = 320
Therefore K = 320.
Answer:
1. slope = 4 intercept = -2
2. slope = 2/3 intercept = -4
3. slope = -1 intercept = 13
Step-by-step explanation: