Apply the laws of exponents, calculate the result and express the result in scientific notation, and as a decimal: ((4.1·103)(2.8·10−7))/(3.1·10−5) the result in scientific notation is_ *10^_. the result as a decimal is_.

We are given

We can move like terms altogether

now, we can use property of exponent

We can use another exponent property

so, we get

So, the result in scientific notation is

..........Answer

So, the result as a decimal is

.............Answer

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