Lesson 1-2: More Geometric Terms ASSIGNMENT Using complementary and supplementary angles: 1. What is the complement of 20' ? 2. What is the supplement of 20° ? 3. What is the complement of 45° ? 4. What is the supplement of 45° ? 5. What is the complement of 18°? 6. What is the supplement of 118° ? 2 7. Name a pair of complementary angles: 8. Name a pair of supplementary angles: 9. Name a pair of vertical angles: 10:name a pair of adjacent angles:

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110

6.25 grams

step-by-step explanation: