Answer:
D
Step-by-step explanation:
2000=1 ton so 4000=2tons
The directrix of the parabola is 
<h3>How to determine the equation of the directrix?</h3>
The parabola equation is given as:

A parabola is represented as:

By comparing both equations, we have:
4p = 1/4 ==> p = 1/16
-k= 3 ==> k = -3
The directrix is represented as:
y = k - p
So, we have:

Take the LCM

Evaluate

Hence, the directrix of the parabola is 
Read more about parabola at:
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Answer:
-14
Step-by-step explanation:
Okay first we must simplify the expression.
so this:(3x^2 + x-2)(x - 5)
becomes this:3x^3-14x^2-7x+10
then we look at the coefficient of x^2 and we see that it's -14
Answer:
$486
Step-by-step explanation:
all you do is multiply 27 and 18. i feel like using compatible numbers bc the numbers you have will give you your answer.
Answer:
The formula for the vertex of the parabola is -b/a. Plugging this in we get -(-4)/1 or 4.