Hm..I'm pretty sure the answer is 34
Answer:
the surface area of a cone is given by
πr'2+πLr
r=7in L=14in
A=462 in
1. The coefficient of the squared term (-1/3) is negative, so the graph opens downward.
2. Matching the pattern to
.. y = a(x -h)^2 +k
we find (h, k) = (-2, 5) . . . . . . selection C
3. See the previous answer. The axis of symmetry is
.. x = h
Since h = -2, the axis is x = -2. . . . . . selection B
The temperature went from -3 to 16. The difference between the two numbers (16- -3) = 19 degrees Fahrenheit.
I hope this helps!
5n + 4 = 39
5n = 39 -4
5n = 35
n = 35:5
n = 7