The answer would be:
5(-4) - 8
-20 - 8
-28
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:

The education is (x-h)^2 + k ands the vertex is (h,k)
Use the chain rule.
Let u = 25sin²(x), such that dy/dx = dy/du · du/dx


B: is the best answer because there splitting 2 apples among 3 people and that means there’s not enough for all, so they all receive 2/3 of an apple to all get shared with equally. Hopefully this helps!