Many older homes have electrical systems that use fuses rather than circuit breakers. a manufacturer of 40-amp fuses wants to make sure that the mean amperage at which its fuses burn out is in fact 40. if the mean amperage is lower than 40, customers will complain because the fuses require replacement too often. if the mean amperage is higher than 40, the manufacturer might be liable for damage to an electrical system due to fuse malfunction. to verify the amperage of the fuses, a sample of fuses is to be selected and inspected. if a hypothesis test were to be performed on the resulting data, what null and alternative hypotheses would be of interest to the manufacturer? of interest to the manufacturer? h0: ý¼ > 40ha: ý¼ = 40h0: ý¼ = 40ha: ý¼ > 40h0: ý¼ = 40ha: ý¼ â� 40h0: ý¼ = 40ha: ý¼ < 40h0: ý¼ < 40ha: ý¼ = 40

the answer to the expression is 83

(23*2)-12=x     x=34

step-by-step explanation:

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