Answer:
2980
Step-by-step explanation:
2.98*10^3 = 2980
4(5)+4(3)+3(2)=$38 total cost =$38
Answer:

Step-by-step explanation:
A quadratic equation has one root if the discriminant is 0.
That is we need
for this particular question.
Compare the following to find
:


The variable
is representative of the variable
here.



Plug in into
:


Subtract 4 on both sides:

Divide both sides by 16:

Reduce:

Answer:
x = -9, -2, and 3.
just set everything possible to 0.
since 0 = 0 it must be true.