Adam added 30.0 grams of Sodium Hydroxide to 750.0mL of water to create a stock solution to be used for a number of purposes. 250.0mL of the stock solution was removed to be used for a demonstration but Mr. Offenbacher decided the initial concentration was too strong. He decided to add another 100.0mL of water to the removed solution. What was the concentration of the initial stock solution and what is the concentration of the final concentration to be used for the demo? Show all of your conversion factors for full marks.

mark other person brainliest

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1