Answer:
B)max/ opens down
Step-by-step explanation:
Parabola equation:
The equation of a parabola has the following format:
If 
, that is, x² is multiplied by a positive number, the function has a minimum value and the parabola opens up.
If 
, that is, x² is multiplied by a negative number, the function has a maximum value and the parabola opens down.
In this question:
From the graph, we already see that it opens down and has a max, and analitically, since 
, this is confirmed. The correct answer is given by option b.
Has to be greater than 90 degrees.
Step-by-step explanation:
I do not understand .____.
Answer: 25 hours
Step-by-step explanation:
8 screens
or
Replace;
Answer:
90$
Step-by-step explanation:
(12 pairs of jeans * $7.50) / 1 pair of jeans = 90$
