Sunday

February 1, 2015

February 1, 2015

Posted by **Marissa** on Thursday, August 23, 2007 at 11:23pm.

1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7

a.143

b.136

c.140

d.133

answer=b

2)Write an equation for the nth term of the arithmetic sequence -3,3,9,15...

a.an=n+6

b.an=6n+9

c.an=6n-9

d.an=n-3

answer=b

3)Find the two arithmetic means between 4 and 22

a.10,16

b.8,16

c.8,12

d.13,13

answer=a

4)Simplify:Find Snfor the arithmetic series in which a1=3,d=1/2,and an=15

a.225

b.9

c.45

d.210

answer=b

5)I dont know how to type this but its like this in my book.

Find; 8 is on top of the sigma notation and k=3 is at the bottom(40-3k) is on the right side

a.45

b.282

c.-90

d.141

answer=d

**Answer this Question**

**Related Questions**

algebra(check) - I'm pretty sure these are right but I just want to check. 1)...

algebra - I'm pretty sure these are right but I just want to check. 1)Find the ...

algebra - I'm pretty sure these are right but I just want to check. 1)Find the ...

algebra - 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 ...

math - Hi I need someone to check my answers I'll show whatever work I have but ...

Math ( Can You check my Work?) - 1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an...

Algebra - True or False 1. – 5, – 5, – 5, – 5, – 5, … is an arithmetic sequence...

PreCalc - 1) Determine the value of r (put this number in the first blank) and ...

Mathematics : Arithmetic Sequence - The 5th term and the 8th term of an ...

Algebra - What is the 20th term in the following arithmetic sequence? 1/2, 1, 3/...