Posted by lee on Sunday, February 3, 2013 at 8:52pm.
Could someone check my work;
1. Generate the first five terms in the sequence using the explicit formula.
yn = –5n – 5
–30, –25, –20, –15, –10
30, 25, 20, 15, 10
–10, –15, –20, –25, –30(my answer)
10, 15, 20, 25, 30
2. What is the 15th term in the sequence using the given formula?
cn = 3n – 1
14
57
44
–44(my choice)
3. Write a recursive formula for the sequence 7, 13, 19, 25, 31, ... Then find the next term.
an = an– 1 + 6, where a1 = 7; 37(my choice)
an = an– 1 + 6, where a1 = 37; 7
an = an– 1 – 6, where a1 = 6; –23
an = an– 1 – 6, where a1 = 7; –8
4. Write a recursive formula for the sequence 7, 4, 1, –2, –5, .... Then find the next term.
an = an–1 – 3, where a1 = –8; 7
an = an–1 – 3, where a1 = 7; –8(my answer)
an = an–1 + 3, where a1 = –3; 22
an = an–1 + 3, where a1 = 7; –8
5. Write an explicit formula for the sequence 8, 6, 4, 2, 0, ... Then find a14.
an = –2n + 10; –16
an = –2n + 8; –18
an = –2n + 8; –20
an = –2n + 10; –18
Dont understand this problem.

algebra  Reiny, Sunday, February 3, 2013 at 11:13pm
your first four are correct
#5.
In the explicit formula, you can find any term directly , unlike a recursive, where you have to know the previous term
so if n = 1, we should get 8 from the formula
look at the first and last
the both give you
a(1) = 2(1) = 10 = 8
a(14) = 2(14) + 10 = 28+10= 18
so it has to be the last one.

algebra  a, Friday, February 8, 2013 at 5:26pm
Multiple Choice
1. Generate the first five terms in the sequence using the explicit formula.
yn = –5n – 5 (1 point)
(0 pts) –30, –25, –20, –15, –10
(0 pts) 30, 25, 20, 15, 10
(1 pt) –10, –15, –20, –25, –30
(0 pts) 10, 15, 20, 25, 30
1 /1 point
2. What is the 15th term in the sequence using the given formula?
cn = 3n – 1 (1 point)
(0 pts) 14
(0 pts) 57
(1 pt) 44
(0 pts) –44
0 /1 point
3. Write a recursive formula for the sequence 7, 13, 19, 25, 31, ... Then find the next term. (1 point)
(1 pt) an = an– 1 + 6, where a1 = 7; 37
(0 pts) an = an– 1 + 6, where a1 = 37; 7
(0 pts) an = an– 1 – 6, where a1 = 6; –23
(0 pts) an = an– 1 – 6, where a1 = 7; –8
1 /1 point
4. Write a recursive formula for the sequence 7, 4, 1, –2, –5, .... Then find the next term. (1 point)
(0 pts) an = an–1 – 3, where a1 = –8; 7
(1 pt) an = an–1 – 3, where a1 = 7; –8
(0 pts) an = an–1 + 3, where a1 = –3; 22
(0 pts) an = an–1 + 3, where a1 = 7; –8
1 /1 point
5. Write an explicit formula for the sequence 8, 6, 4, 2, 0, ... Then find a14. (1 point)
(0 pts) an = –2n + 10; –16
(0 pts) an = –2n + 8; –18
(0 pts) an = –2n + 8; –20
(1 pt) an = –2n + 10; –18
1 /1 point

algebra  Potato, Monday, December 8, 2014 at 5:08pm
^^

algebra  bob, Wednesday, December 9, 2015 at 12:40pm
^^
Answer This Question
Related Questions
 algebra  Generate the first five terms in the sequence using the explicit ...
 math  Generate the first five terms in the sequence using the explicit formula...
 Math....Please help I have a deadline for tonight!  Use the geometric sequence ...
 Algebra 2  What are the first 6 terms of the sequence with the explicit formula...
 math30  Sequences 1)A sequence has a first term of 24 and every other term is ...
 math  The first and second terms of an exponential sequence (G.P) are ...
 Algebra 1 Honors  Write an equation for the nth term of the arithmetic sequence...
 Math  an = 3n  1 Answer 2, 3, 4, 5 2, 5, 8, 11 2, 5, 8, 11 4, 7, 10, 13 3...
 Math ( Can You check my Work?)  1.an = 3n  1 2. an = 2(2n  3) 3.an = 4^n 4.an...
 algebra  a student write that an=3n+1 is a explicit formula for the sequence 1,...
More Related Questions