1. 1,3,9,27,81
1*3=3
3*3=9
9*3=27........⇒ Geometric, common ratio is 3 --- B
3. 20,17,14,11
20 - 3 = 17
17 - 3= 14
14 -3= 11........⇒ Arithmetic , common difference is 3 ....D
4. 128, 32, 8, 2
32=128*1/4=128*0,25
8=32*0,25
2=8*0,25.......⇒ Geometric, common ratio is 0,25.......A
The expression is log 4 x = 5
Answer:
All of the 3 angles equal to 83°
Step-by-step explanation:
3x + 111° = 360°
3x = 249°
x = 83°
Answer:
540°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 5, thus
sum = 180° × 3 = 540°
Answer:
CEB
Step-by-step explanation:
hope this helps I think that's right