5.265 is the answer for this question
A. The equation is written in standard form; a = 3, b = 9, c = 10.
Answer:
9.333333 (repeating decimal)
1,0 should be the vertex for this parabola
The number of remaining problems is:
30-20 = 10 problems.
The amount of time remaining is:
40-25 = 15minutes
For the first 20 problems the time per problem is:
t1 = 25/20 = 5/4 minutes
For the remaining problems the time per problem is:
t2 = 15/10 = 3/2 minutes
Answer:
you will be able to spend about 3/2 minutes on each remaining problem