Math problems easy
What is t11 of the arithmetic sequence -4,-7,-10,....
(-34)
What is t7 for geometric sequence -1,4,-16,....
(-4096)
For the geometric sequence 50,25,12.5,...., what is the infinite sum of it
(100)
What is the sum of the first 10 terms for a arithmetic sequence 1,3,5,...
(100)
What is the sum of the first 10 terms of arithmetic sequence 1,3,5,....
(100)
For an arithmetic sequence -7,-4,-1,...., what is the seventh term of it
(11)
If an arithmetic sequence has t1=3 and t10=21, what is the sum of the first 10 terms
(120)
For an arithmetic sequence -7,-4,-1,...., what is the sum of the first seven terms
(14)
. If a geometric sequence has t1=2 and t5=32, what is the sum of the next 5 terms
(1984)
If an geometric sequence 2,....,32 has 5 terms, what is the ratio of it
(2)
What is the sum of t2, t7, for the geometric sequence 1,2.5,6.25,....
(2.5, 244.140625)
If a geometric sequence has t1=2 and t5=32, what is the sum of the first 10 terms
(2046)
What is the sum of the next 7 terms of the geometric sequence 1,3,9,....
(29511)
If an arithmetic sequence 2,...20 has 7terms, what is the common difference of it?
(3)
For a geometric sequence 50,25,12.5,...., what is the fifth term of the sequence
(3.125)
What is the sum of t2, t7, and t10 for the arithmetic sequence -10,-6,-2,....
(34)
If an arithmetic sequence has t1=4 and t2=5, what is the sum of the next 5 terms
(40)
If an geometric sequence has t1=1 and r=2, what is t10 for this sequence
(512)
What is the sum of the next 5 terms of the arithmetic sequence 2,4,6,....
(60)
If an arithmetic sequence has t1=1, and d=2, then what is the value of t4?
(7)
What is the sum of first 12 terms for geometric sequence 2,4,8,....
(8190)
What is the sum of the next 5 terms for the geometric sequence 3,9,27,....
(9801)
For the geometric sequence 50,25,12.5,...., what is the sum of the first 10 terms
(99.9)
What is t1, r, and tn for the geometric sequence 2,-6,18,....
(t1=2, r=-3, tn=2*-3^n-1)
What is t1, d, and tn of the arithmetic sequence 3,0,-3,....
(t1=3, d=-3, tn=3n+6)
What condition do we need to find a infinite sum of series
(the series must be a convergent geometric series)
What is the general term of geometric sequence 3,6,12,....
(tn=3*2^n-1)
What is the general term of arithmetic sequence 3,7,11,15,....
(tn=4n-1)
What is the general term for a arithmetic sequence that has t1 of 1 and t5 of 5
(tn=n)
In a geometric sequence, the first term is 3.2 and the fifth term is 259.2. Find the value of r.
+3 and -3
Same as above, t1= -1,d= -4
-1,-5,-9,-13
Same as above, 8+3+(-2)+...+(-102）
-1081
Same as above, t1= 1.25,d= -0.25
1.25,1.00,0.75,0.50
Same as above, t1= -6,tn=21,Sn=75
10
Same as above, 2.1+4.2+8.4+...
1073.10
For the sequence defined by tn=3n+8, find indicated term， t1=？
11
Given t1=4,tn=16384 and r=2,determine n.
13
For the arithmetic series, determine the value of n ？t1=8,tn=68,Sn=608
16
Same as above, t7=？
29
From question 3 if n=100, what is the result ?
299
Same as above, 2/3+5/3+8/3+...+41/3
301/3
Same as above, t1= 4,d= 1/5
4,4.2,4.4,4.6
Determine the sum of arithmetic series. 5+8+11+...+53
493
Write the first four terms of arithmetic sequence for the given values of t1 and d. t1=5,d=3
5,8,11,14
Same as above, t14=?
50
For geometric series, state the values of t1and r . Then determine indicated sum. Express the answer as exact values in fraction form and to the nearest hundredth. 6+9+13.5+...(S10)
679.98
Same as above, 7+14+21+...+98
735
Same as above, -4,-7,-10,-13,-16,...
Arithmetic sequence , t1= -4, d= -3, -19,-22,-25
Identify the arithmetic sequence first and state the value of t1,d,and the next three terms. 16,32,48,64,80,...
Arithmetic sequence , t1=16, d=16, 96,112,128
Same as above, 3,0,-3,-6,-9,...
Arithmetic sequence , t1=3, d= -3, -12,-15,-18
In arithmetic sequence, d is called the common difference, what is the name of r in geometric sequence ?
Common ratio
Same as above, 2-4+8-...
Divergent, no sum
Same as above, 2, 4, 8, 16, 32, ...
Geometric sequence
Same as above, 2,4,6,8,...
Non-geometric
Decide whether infinite geometric series is convergent or divergent. State the sum of the series,if it exists. 1-1/3+1/9-...
S∞=3/4
As we all know, tn=t1+（n-1）*d ，what is the condition to this equation ?
n ＞0 and n is natural number
How many terms are in the following sequence? 2,5,8,11,... 20
n=7
Determine if the sequence is geometric, state the r and the general term 1,2,4,8,...
r=2, tn=2^n-1
Find the general term of the sequence if t1=2 , d=3 ?
tn=3n-1