Answer:
11
Step-by-step explanation: Since the question does not specify wether the temperature dropped every hour or if it was the total, in this case we can assume this was in total. If you ended up with -2 after subtracting 13, to get the starting temperature you can add -2 to 13.
-2 + 13 = 11
Take 124,000 books and multiply it by the percentage of children fiction which is 23%
124,000 x 0.23 = 28,520 children fiction books
i)
<u>Factor using completing square method</u>
ii)
<u>Find zeros of a function, f(x) = 0</u>
iii)
<u>In order to find vertex use the formulae : x = -b/2a</u>
Then find y:
coordinates: (8, 0)
iv) Sketched Below:
8:44 is what I believe to be the answer. Hope it helps ;)<span />