I would like some one to answer the questions so I can check to make sure my answers are correct please.

 

Thanks

 

 

 

Question 1 Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
6th term is -10; 15th term is -46
a1 = 10, d = -4, an = an-1 - 4
a1 = 10, d = 4, an = an-1 + 4
a1 = -30, d = 4, an = an-1 + 4
a1 = -10, d = -4, an = an1-4
4 points
Question 2 Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common
difference, d, are given.
a = -3; d = 3
an = ?; a10 = ?
an = -6 - 3n; a10 = 24
an = -3 + 3n;
a10 = 24
an = -6 + 3n;
a10 = 24
an = -6 + 3n;
a10 = 36
4 points Question 3 Find the sum. -1360
-1120
-1260
-1320
4 points
Question 4 Find the sum. 1175
1075 1262.5
1037.5
4 points
Question 5 Find the indicated term using the given information. a48 = - , a26 = - ; a3 -1 - 2
4 points
Question 6 Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
9th term is -68; 15th term is -122
a1 = 13, d = 9, an = an-1 + 9
a1 = 4, d = -9, an = an-1 - 9 a1 = 4, d = 9, an = an-1 + 9
a1 = 13, d = -9, an = an1-9
4 points
Question 7 Find the indicated term using the given information.
a11 = 6, a18 = 20; a6
-14
-4
-2
2
4 points
Question 8 Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio,
r, are given.
a = -6; r = -2
a5 = -96; an = -6 ∙ (-2)n
a5 = 48; an = -6 ∙ (-2)n
a5 = -96; an = -6 ∙ (-2)n1 a5 = 48; an = -6 ∙ (-2)n1
4 points
Question 9 Find the sum.
3 + 6 + 9 + ... + 294
14259 14553
14406
4 points
Question 10 Find the sum. 42.75
192.4
231.75 274.5
4 points
Question 11 Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
7th term is 4; 13th term is 16
a1 = -8, d = 2, an = an-1 - 2
a1 = -8, d = 2, an = an-1 + 2
a1 = -10, d = 2, an = an-1 - 2
a1 = -10, d = 2, an = an1+2
4 points
Question 12 Find the indicated term using the given information.
12, 10, 8, ... ; a26
-38
64
62
-40
4 points Question 13 Find the sum.
-3 + 1 + 5 + 9 + 13 + ... + (4n - 7)
n(2n + 5
)
n(4n + 7
)
n(2n - 5)
n(4n - 7)
4 points
Question 14 Solve.
A local civic theater has 22 seats in the first row and 21 rows in all. Each successive row contains 3
additional seats. How many seats are in the civic theater?
790 seats
1070 seats
1010 seats
1092 seats
4 points
Question 15 Find the indicated term of the sequence.
The twenty-second term of the arithmetic sequence -15 , -19 , -23 , ... -103
73
69
-99
4 points
Question 16 Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio,
r, are given.
a= ;r=
a5 = 9 , an = 3n/2 a5 = 3 , an = 3n/2-1 a5 = 81
1/2 , an = 3n- a5 = 243, an = 3n
4 points
Question 17 Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
10th term is -11; 14th term is -51
a1 = 79, d = -10, an = an1 - 10
a1 = 89, d = -10, an = an1 - 10
a1 = 79, d = 10, an = an-1 + 10
a1 = 89, d = 10, an = an-1 + 10
4 points
Question 18 Find the sum. -1056
-1008
-896
-1088
4 points
Question 19 Find the indicated term using the given information. a = 7, d = - ; a41 12
2 4 points
Question 20 Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio,
r, are given.
a = 4; r = 3Ï€
a5 = 324π4, an = 4 ∙ 3n-1πn1
a5 = 324π, an = 4 ∙ 3n-1π
a5 = 972π5, an = 4 ∙ 3nπn
a5 = 4 + 12Ï€, an = 4 + 3Ï€(n-1)
4 points
Question 21 Find the sum. 5040
4927.5
5332.5
5175
4 points
Question 22 Find the indicated term of the sequence.
The ninth term of the arithmetic sequence 24, 19, 14, ...
-21
64
-40
-16
4 points
Question 23 Find the indicated term using the given information.
a16 = 88, a13 = 73; a1
5
13
18
23
4 points
Question 24 Solve.
Suppose you just received a job offer with a starting salary of
of per year and a guaranteed raise per year. How many years will it be before you've made a total (or aggregate) salary of ?
21 years
25 years
20 years
18 years 4 points
Question 25 Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common
difference, d, are given.
a = 4; d = -7
an = ?; a16 = ?
an = 11 - 7n; a16 = -101
an = 4 - 7n; a16 = -101
an = 11 + 7n; a16 = 101
an = 11 - 7n; a16 = -52

Attachments:

• 1492676258-Math questions.docx