There are 90,000 famillies who donated to Nina's Fund. They donated 40 dollars each. How many dollars were raised?

$3,600,000

Step-by-step explanation:

If each family raised $40 each then you would multiply 90,000 by 40 giving you the answer above.

360,0000 dollars

Step-by-step explanation:

Way 1: Multiply.

90,000 times 10.

You get 900000.

Do this 3 more times and you get your answer.

Way 2: Add/Multiply

Multiply 90,000 times 10.

You get 900,000.

Add that repetitively 3 more times.

You get 360,0000 dollars both ways.

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

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}