A12 year old blinks about 150 times in 15 minutes. how many times does a 12 year old bink in 1 day?

14400 blinks per day

Step-by-step explanation:

We need to convert minutes to days

60 minutes = 1 hour

24 hours  = 1 day

The units will cancel leaving blinks per day.

150 blinks       60 minutes           24 hour       216000

*  *   =    blinks/day

15 minutes        1 hour                     1 day            15

14400 blinks per day

e

Step-by-step explanation:

answer: sensy

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