If it's add you subtract if it's subtract you add
1. Angle DEF
2. Definition of congruent angles
3. The measure of angle GHI
The answer is 6,889. Squared just means the number times itself. In this case, it's 83 x 83. :)
City C (42 and 66 are the two modes they are the most frequent numbers both appearing 3 times)
Answer:
a₄=8n+1= -39.
Step-by-step explanation:
1) if a₁=3n; a₃=5n-6 and a₅=11n+8, then it is possible to calculate the difference according to 0.5(a₅-a₃)=0.5(a₃-a₁). Then
2) 0.5(11n+8-5n+6)=0.5(5n-6-3n); ⇔ 6n+14=2n-6; ⇔ n= -5.
3) if n=-5, then the 4th term is:
or a₄=-39.