Ms. griffith lives on one of the highest floors in her apartment building. the elevator goes up one floor every 10.2 seconds. along the way, it stops for a total of 45.8 seconds for people to get out. if it takes her 158 seconds to travel from the lobby to her apartment, what floor does she live on?

Ms. Griffiths lives on 3rd floor

Step-by-step explanation:

The elevator moves 10.2 seconds from one floor to another and stops for 45.8 seconds for people to exit. Thus, add: 10.2 seconds + 45.8 seconds = 56 seconds

If it takes her 158 seconds to travel from the lobby to her apartment, then 158 seconds/56 seconds = 2.8 = 3 (approximately).

Therefore, she lives on 3rd floor.

Mathematically, the values ought to be 168 seconds /56 seconds = 3.

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

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation: