42.88. You might want to wait for another answer jyst to be 100% sure:)
9.8 is the middle number which is the median
Answer:
don't ask for an explanation. your answer is below.
Step-by-step explanation:

Answer:
(d) f(x) = -x²
Step-by-step explanation:
For the vertex of the quadratic function to be at the origin, both the x-term and the constant must be zero. That is, the function must be of the form ...
f(x) = a(x -h)² +k . . . . . . . . . . vertex form; vertex at (h, k)
f(x) = a(x -0)² +0 = ax² . . . . . vertex at the origin, (h, k) = (0, 0)
Of the offered answer choices, the only one with a vertex at the origin is ...
f(x) = -x² . . . . . a=-1
Answer:
35
Step-by-step explanation:
use distributive property
5a + 5b
5×1 + 5×6
5 + 30
35