Median math question

B

Step-by-step explanation:

The answer is b, because if 5 and 10 are in the middle, you add them (15) then divide by 2, to get 7.5

b. $10

Step-by-step explanation:

to find the median of a set of numbers you put them in order from least to greatest and the median is the middle number if there is an even amount of numbers you would add up the two middle numbers and then divide them by two. And if you have the median and are missing one of the two numbers you would multiply the median by two and subtract the number you know.

351°f

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