Answer:
Oktay
Step-by-step explanation:
10. acute angles: 0
Right angles: 4
Obtuse angles: 0
Perpendicular lines: 0
Parallel lines: 2
11. Acute angles: 2
Right angles: 0
Obtuse angles: 1
Perpendicular lines: 0
Parallel lines: 0
12. H
Answer:
W number - blank is 51.
Step-by-step explanation:
I don't understand what the question is. What is the number unless you want something random then here:
Blank - 52
a number = 1
52 - 1 = 51
You replace x with (a+1)
Then f(a+1) = (a+1)^2+1
= a^2+2a+1+1
= a^2+2a+2