F and d. if i'm wrong i'm sorry i did it in my head.
Answer:
57⁰
Step-by-step explanation:
This is because angle w and the angle with a measurement of 57⁰ are verticle angles, which makes them congruent.
Answer:
First term (a) =8
Common difference (d)= t2-t1
=12-8
=4
Now, sum of first 31th term (tn31) =n/2{2a+(n-1)d}
= 31/2{2×8+(31-1)4}
=31/2{16+(30×4)
=31/2(16+120)
=31/2×126
=31×63
Step-by-step explanation:
Similarly use 19 as (n) for the 19th term
Answer:
It's irrational
Step-by-step explanation:
the square root of 27 is equal to:
We know that is an irrational number (but a real number), so is the same.
In case we need to prove that is irrational, please leave a comment.
Answer:
D. 54
Step-by-step explanation:
54 + 54 = 108, and 72 + 180 equals 180 degrees.
This is due to the fact all angles in a triangle add up to 180 degrees.