What is the constant d.
common difference
What is the formula for the sum of arithmetic series.
Sn=n/2(a1 + an)
What does the letter 'r' represent?
common ratio
What is the expression for the sum of the terms of a geometric sequence.
a geometric series
Find the sum of the following sequence 3 + 9 + 27 + ...
divergent, therefore unobtainable.
What is the d value in 1, 1/2, 0, -1/2?
d= -1/2.
What is the name of the man who discovered the arithmetic series formula.
Carl Friedrich Gauss?
What is the commen ratio: 3, 1, 1/3, 1/9,...
1/3
What is the equation for the sum of a geometric series where you know the value of n.
Sn = a1(1 - rn)/(1-r)
What are the two types of infinite geometric sequences?
divergent and convergent
What is the value that is missing term 4.5,_____, 11.5?
In a stack of cans the 3rd row had 10 cans and the 8th row has 5 cans, find the number of cans in the first row.
12 cans
Find the value of a4 of term of a sequence where a1= 3 and r=1/4
0.047 or 3/64
When do you use the equation Sn = a1(1 - rn)/(1-r) over the other formula (Sn = a1/(1-r))
when it is geometric and finite and r <1
In the infinite geometric series formula the common ratio cannot equal to what?
1
What are the first three terms in an arithmetic sequence with a17=125, d=7?
13, 20, 27.
Find the sum of the series with 50 terms
50 + 48 + 46 + ...
50
If a1 =5 and a4 = 40, where the explicit formula
an = 5(2)n-1
The value of a1, when Sn=443, n=6, r=1/3.
295.7
Find the he value of a1, with the sequence ... + 5/3 + 5/9 + 5/27+ ... and has a sum of 6.
a1 =4?
a3=16, and a8=6, Find the values of a1, and d.
d=-2 and a1=20.
Find the sum of the 13th through 16th terms of this sequences 3 + 6 + 9 + 12
174
Which term is equal to 47,829,690, if r=9, and a1=10
n=8
What is the total distance a ball travels after it's dropped by a height of 15m and returns to 75% of its original height?
105
The sum of the following convergent series 1 + 1/2 + 1/4 + 1/8 + ... is?
2