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October 1, 2016

Search: geometric

Number of results: 1,146

Algebra help PLEASE?
14, 8, -16, 32... Arithmatic. 64, 128, 256 geometric, -64, 128, -256 geometric, -48, 64, -80*** the sequence is neither geometric nor arithmatic 81, 27, 9, 3.. aruthmatic , 0,-3,-6 geometric, 0,-3,-6 geometric, 1, 1/3, 1/9
April 21, 2014 by Aniston

Math
Determine whether this sequence is arithmetic or geometric. Find the next three terms. 81, 27, 9, 3, . . . A. arithmetic, 0, 3, 6 B. geometric, 0, 3, 6 C. geometric, 1,1/3 , 1/9 D. The sequence is neither geometric nor arithmetic. Is the answer C? Thank you
April 16, 2015 by Morgan

algebra
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 4, 8, 16, 32, . . . A.arithmetic, 64, 128, 256 B.geometric, 64, 128, 256 C.geometric, 48, 64, 80 .DThe sequence is neither geometric nor arithmetic. I think it's B...? 81, 27, 9, 3...
March 19, 2013 by Cassie

Math Help!!!
determine whether each sequence is arithmetic or geometric. find the next three terms. 1. 14,19,24,29.... geometric, 34,39,44 arithmetic,32,36,41 arithmetic 34,39,44**** the sequence is nether geometric nor arithmetic 2. -4,8,-16,32.... arithmetic. 64,128,256 geometric -64,128...
March 24, 2015 by help asap

7th Grade Math for Steve.. or Ms. Sue
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 ** The sequence is neither geometric nor arithmetic. 2. 4, 8, 16, 32, . . . (1 point...
April 28, 2013 by Gabby

math
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 *** The sequence is neither geometric nor arithmetic. 2. 4, 8, 16, 32, . . . (1 point...
May 2, 2014 by TTR+S<3

Math
Which represents the type of sequence: 12, 22, 30, 36, 41, ? neither arithmetic nor geometric both arithmetic and geometric arithmetic geometric
March 10, 2012 by Brett

Math
Determine whether each sequence is arithmetic or geometric. Find the next three terms. -4,8,-16,32... A. Arithmetic, 64,128,256 B. Geometric, -64,128,-256 C. Geometric, -48,64,-80 D. The sequence is neither arithmetic nor geometric sequence. B? Thank you
April 16, 2015 by Morgan

algebra
1. The geometric mean between the first two terms in a geometric sequence is 32. If the third term is 4, find the first term. 2. Insert a geometric mean between k and 1/k. 3. If 2 and 3 are two geometric means between m and n, fond the values of m and n. 4. Three positive ...
July 16, 2016 by sylvia

8th grade math!!!!! :)
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 The sequence is neither geometric nor arithmetic. 2. 4, 8, 16, 32, . . . (1 point) ...
April 11, 2013 by jessie

Algebra
Determine whether each sequence is arithmetic or geometric. Find the next three items. 1. 14,19,24,29, . . . a. geometric; 34, 39, 44 b. arithmetic; 32, 36, 41 c. arithmetic; 34, 39, 44 d. The sequence is neither geometric nor arithmetic.
May 18, 2014 by Shelin

Math
Determine whether each sequence is arithmetic of geometric. Find the next three terms. 14,19,24,29.... A. Geometric,34,39,44 B. Arithmetic,32,36,41 C. Arithmetic, 34,39,44 D. This sequence is neither arithmetic or geometric. Is the answer C? Thank you
April 16, 2015 by Morgan

Geometric Series (Algebra 2)
I need some assistance or a formula when trying to find the first term of geometric series please! I don't understand this!!!! What is the first term of a geometric series with a summation of 289, 5 terms and a common ratio of 1/2?
April 14, 2012 by Greg

Math
Tell whether the sequence 1/3,0,1,-2 is arithmetic, geometric, or neither. Find the next three terms of the sequence. A.neither;7,-20,61 B.geometric;7,-20,61 C.arithmetic;1/3,1 1/3,3 D.geometric;-3 1/3, 5 5/9,9 7/27
August 27, 2016 by jennifer

Math (Geometric Progression)
5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phrase "form an arithmetic progression" ...
June 22, 2013 by Shin

Math
Is the following sequence a arithmetic,geometric or neither? 1.6, .8, .4, .2 my answer is geometric
May 11, 2014 by steve

Pre-Calc.
Write the geometric sequence that has four geometric means between 1 and 16,807.
March 20, 2015 by Julissa

math
Determine whether the sequence is geometric. If so, find the common ratio. 2, 6, 18, 54,... a. −1/3 b. 3 c. not geometric d. 2 e. 3
August 27, 2016 by leah

Math - Geometric
In a geometric seq. Where the first three terms are 9, -6 and 4 which term of the sequence is 256/729 ?
August 17, 2016 by Ria

geometric series
what is the nth term equation for a geometric sequence with a1 = 36 and r = 1/3
September 13, 2010 by raven

Mathematics. Geometric sequences.
2+4+8+...is a geometric sequence. Prove the sum of the first n terms is two less than the (n+1)the term.
March 10, 2013 by Olivia

Algebra
Identify the sequence as arithmetic, geometric, or neither. Explain your answer. 1.6, 0.8, 0.4, 0.2, . . . I think it is geometric - divisible by 1/2...? Is that right?
March 21, 2013 by cassie

Geometric Progression
Integers a, b, c, d and e satisfy 50<a<b<c<d<e<500, and a,b,c,d,e form a geometric sequence. What is the sum of all possible distinct values of a?
June 19, 2013 by Mathslover

math {sequences}please help
Sequences 1. 14, 19, 24, 29, a. Geometric, 34,39,44 b. Arithmetic,32,36,41 c. Arithmetic, 34, 39, 44 ** d. The sequence is neither 2. -4, 8, -16, 32, . . . . a. Arithmetic , 64, 128, 256 b. Geometric, -64 , 128, -256 ** c. Geometric, -48, 64, -80 d. Neither 3. 81, 27, 9, 3...
April 8, 2016 by UNKNOWN

Math
1. Find the 11th term of the geometric sequence 64, -32, 16, -8, . 2. Find the 1st term of a geometric sequence with a 10th term -1024 and r = -2. 3. Find the sum of each infinite geometric series, if possible. a. 10 + 2 + 2/5 + ..... b. 1.2 2.4 + 4.8 9.6 + ..... c. 3 ...
October 7, 2014 by Brianna

math
each of the points on the two graphs are of the form (n, tn), where tn is either a geometric or arithmetic sequence. identify the graph that presents a geometric sequence. justify your answers. then determine S8 of the geometric sequence graph A points: 1,5 2,3 3,1 4,(-1) 5,(-...
January 18, 2011 by nicole

CALC II
Determine the convergence of the following series using the nth-partial sum or geometric series formula. The sum of n=1 to inifitiy 1/(9n^2+3n-2) How do I start? I'm guessing I should factor out the denominator but whats after that? It is close to a geometric series, so use ...
June 18, 2007 by Ace

Maths
Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of the geometric sequence is the same as the common difference of the arithmetic sequence.If the 6-th term of the geometric sequence is 96.Find the ...
February 3, 2013 by Lucas

math
-4, 8, -16, 32 arithmetic 64, 128, 256 geometric -64, 128, -256 Geometric -48, 64, -80 the sequence is neither geometric nor arithmetic
May 9, 2013 by Nisabel

Geometric progression
The second term of a geometric progression is 12 more than the first term given that the common the ratio is half of the first term. Find the third term of the Geometric progression
October 23, 2011 by Anonymous

math help please ASAP
2. Identify the sequence as arithmetic, geometric, or neither. 1.6, 0.8, 0.4, 0.2, . . . (1 point) arithmetic geometric neither 3. 5 3^n (1 point) 15, 30, 45, 60 5, 15, 45, 135 0, 15, 45, 135 15, 45, 135, 405 4. Use the function rule (x) = n |1|^n. Find the output (2...
April 25, 2013 by Delilah

Algebra
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 14, 19, 24, 29, . . . A.geometric, 34, 39, 44 B.arithmetic, 32, 36, 41 C.arithmetic, 34, 39, 44 D.The sequence is neither geometric nor arithmetic. I think this is C...? What are the first ...
March 19, 2013 by Cassie

algebra
can you check my answers please? What are the first three terms of the sequence: a1 = 3 and an = 2(an1)2? 2, 8, 18 3, 18, 648 --3, 32, 50 2, 6, 12, 24 What is the 14th term in the sequence: an = 4n + 13? -43 43 __> -69 69 What is the recursive rule for the sequence: −...
March 22, 2012 by Jennifer

pre-calculus urgent
Please help me here as well to clarify more my understanding. Let a1, a2, a3, . . . be a geometric sequence with initial term a and common ratio r. Show that a1^2, a2^2, a3^2, . . . is also a geometric sequence by finding its common ratio. Given that the ratio for a1, a2, a3...
August 15, 2015 by Alex

Geometric Sequence
The product of the first five terms of a geometric progression is 32. If the fourth term is 17, compute the second term.
March 12, 2013 by Will

geometric sequences
given the geometric sequences:9 90/17, 900/289 find an explicit formula for an, where the first term is a1=9 an= a10=
April 25, 2016 by Rosie

Geometry-8th gr
The geometric mean x of two numbers is the positive value of x that satisfies the proportion a/x =x/b, where a and b are given. Find the geometric mean of 16 and 9.
January 31, 2013 by Mona

Algebra
Find the next three terms 1. 14,19,24,29 A.geometric 34,39,44 B.arithmetic 32,36,41 C.arithmetic 34,39,44 D.The sequence is neither geometric or arithmetric I think the answer is c
January 22, 2016 by SeCondra

Math - Geometric Series
Find the sum of the geometric series 128 - 64 + 32 - . . . to 8 terms. a) 85 b) 225 c) 86 d) 85/2 e) not possible
December 11, 2010 by Robo123

Chemistry
1)Define the term'geometric isomers' 2)Give geometric isomers and corresponding names for the following condensed structural formula: CH3CH2(CH)2CH3
September 23, 2011 by Gift

Math
5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phase "form an arithmetic progression" ...
May 11, 2013 by Shin

math
The 65th therm in a geometric sequence is 8000, and the 69th term is 500, find the 64th term using the geometric series sum formula
December 18, 2011 by Poppy

Math
1/27 + 1/9 + 1/3 + ... + 81 I know the series is geometric. d = 1/3 Multiplying each by 1/3 to get the next value do i use the sum of geometric series a(1-r^n)/ 1-r
December 12, 2014 by Tasha

math
1) If the number 1,1/3,1/9, are terms of Geometric progression. Find its common ratio 2) If the second term of Geometric progression is equal to 3, and the 5th term is equal to 81/8. Find the 7th term. 3)If x,y,3 is a Geometric progression. Find the value of x and y 4) Insert ...
March 12, 2011 by bogoss

math30
The sum of the first 10 terms of the geometric sequence -4, 6, -9,..., to the nearest tenth, is; The answer is: For the geometric series a=-4, r=-1.5 or -3/2, n=10. Sn= a(r^n - 1)/r - 1 S10= -4((-1.5)^10 - 1)/-1.5 - 1 S10= 90.7 My question is from where they got r=-1.5 or -3/2...
August 23, 2012 by alejandro

Math
I need help with sequences 2,1,1/2,1/4,... Is this arithmetic, geometric,neither, or both (geometric?) 7,9,11,13 arithmetic, geometric,neither, or both. (arithmetic?) 1,2,4,8... Whats the rule think the rule is: Start with one and multiply by two repeatedly 50,40,30,20 Rule ...
April 24, 2015 by Amber

algebra
1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1 answer=d 3)Find four ...
August 23, 2007 by Marissa

algebra
1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1 answer=d 3)Find four ...
August 24, 2007 by Marissa

algebra
1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1 answer=d 3)Find four ...
August 26, 2007 by Marissa

check one question statistic
For the scenario below, determine if the experiment describes a geometric distribution. If it is not a geometric setting, state why. if it is a geometric a) the two outcomes head or not head b) What constitutes one trial Flip a coin constitutes a flip coin c) the probability ...
March 31, 2014 by helen

algebra(check)
1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1 answer=d 3)Find four ...
August 24, 2007 by Marissa

math Help plz
1.Given a geometric sequence with a_1=6 and r=2/3, write an explicit formula for a_n, the nth term of the sequence. 2.A geometric sequence has a_4=4 and a_5=7. What is a?
November 30, 2015 by Kenneth

geometric mean
Eighteen is the Geometric Mean of 12 and what number 18 = sqrt (12 x) Solve for x. The answer is an integer, and it isn't 24 (That's the arithmetic mean). cheese is yellow
May 7, 2007 by mike

Math
The third, fifth and seventeenth terms of an arithmetic progression are in geometric progression. Find the common ratio of the geometric progression.
August 26, 2015 by Gustav

arithmetic
use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 50 and the 8th term is 18
March 17, 2011 by Taylor White

math
If An is defined as a geometric sequence, is the sequence 1/An also a geometric sequence? Can someone help explain how I can figure out this statement?
December 14, 2015 by jjenng

AGL 2 (Geometric Series)
Is their a formula for finding the Sum for Geometric Series?
February 1, 2012 by Embraced

Maths - Geometric Progression
Find the value of x for which the numbers x+1, x+3, x+7, are in geometric progression.
October 4, 2012 by Anonymous

Pre-Calc/Trig...
If An is defined as a geometric sequence, is the sequence 1/an also a geometric sequence? Explain your reasoning
December 3, 2014 by Anonymous

math
1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I chose C 3)Find four ...
December 12, 2007 by Jon

7th grade math
For questions 1, 2 identify each sentence as arithmetic, geometric both or neither. 1) 7, 9, 11, 13 ...... A) arithmetic B) geometric C) both D) neither (my answer) 2) 2, 1, 1/2, 1/4, .... A) arithmetic B) geometric C) both (my answer) D) neither
March 18, 2015 by Ashley

Geometric series
The sum of the first n terms of the geometric sequence -1, -3, -9,... is -3280. Find the value of n. Express answer in simplest fractional form. 1. t1= -1 2. r = 3 3. S6 = I got -364 but it's not the right answer 4. n = I keep getting a decimal number: 18.72075441...
May 8, 2016 by Emily J

precalc
Determine whether the sequence is geometric or arithmetic. Then give the general formula for the nth term of the sequence. 6.1, 6.9, 7.7, 8.5, 9.3,... I think it is Geometric, but i don't know how to find the formula
December 5, 2011 by Alex

Maths
The first, third and ninth terms of an arithmetic sequence form the terms of a geometric sequence. Find the common ratio of the geometric sequences. a, a+2d, a+8d a+2d/a = a+8d/a+2d ?
January 16, 2015 by Michael

Geometric Series
Evaluate the geometric Series or state that it diverges lower bound k= 1 upper bound = infinity E (sum symbol) E 5(-1/6)^(5k) I know it converges but im not sure to what
May 7, 2015 by Kate

chem
Draw the three distinct geometric isomers of 2,4-hexadiene. i can draw what it is giving. but i do not get what the geometric isomers are? if you drew it a different way wouldnt that change the name?
September 15, 2012 by sara

math
The sum of the 3 terms in arithmetic sequence is 39.if these numbers is increased by 1,5 and 12 respectively the numbers would be in geometric progression. find the second term of the geometric progression?
January 25, 2016 by zhaina

math
the first, second, and third terms in the geometric progression are k,k-6, 2k-28 respectively. given that all terms of the geometric progression are positive, calculate the value of constant k.
April 13, 2016 by jack

geometric mean
The geometric mean of two postitive numbers a and b is sqrt(ab). Show that for f(x) = 1/x on any interval [a,b] of positive numbers, the value of c in the conclusion of the mean value theorem is c = sqrt(ab) I have no idea how to do this! If the mean of a and b is sqrt(ab), ...
November 5, 2006 by Jen

Algebra
The first element of a geometric sequence is 1 and the common ratio is 3; determine the smallest 4 digit numeral that represents an element of this geometric sequence
December 16, 2012 by xavier

DDP
what are the different types of geometric constraint that are appiled to sketches and what are their functions? answer: is it geometric constraint numerical constraint assembly constraint
January 15, 2009 by Anonymous

Algebra 2 - Geometric Series
I need help evaluating the geometric infinite series. It's got the double zero thing over the E thing. 00 E(-1/2)^ n-1 (n=1)
April 29, 2009 by Kay

Advanced Algebra (Infinite Geometric Series)
Convert 8.690909 . . . into a single fraction using infinite geometric series.
November 15, 2014 by Alecx

algebra(check)
1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
August 24, 2007 by Marissa

Algebra 2
Determine if the sequence is arithmetic, geometric, or neither. If it is arithmetic or geometric, write a rule. 4,1,0,1,4 My answer: Neither (-2)^2 (-1)^2 0^2 1^2 2^2 Is it correct?
October 26, 2012 by Anonymous

Algebra
1. Why cant you use the formula of the infinite geometric series on 1/81 + 1/27 + 1/9 + 1/3 + ..... 2. Using concepts of infinite geometric series, show that 0.9999 ..... = 1.
September 9, 2014 by Ruby

algebra
1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
August 23, 2007 by Marissa

algebra
1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
August 24, 2007 by Marissa

algebra
1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b.15/2 c.-15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(-1/4)n-1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c 3)Find the sum of ...
August 26, 2007 by Marissa

Algebra II (Geometric Series)
What is the sum of the following geometric series: 1+1/4+1/16
June 5, 2012 by Gregory

Math Geometric Series
Evaluate this geometric series: 7 + 14 + 28 + ... + 3584
June 3, 2013 by Anonymous

Pre-Calculus-check answers
Find the sixth term in the geometric sequence: sqrt3y^3, -3y^5, 3sqrt3y^7 Answer: -27y^13 2) Find three geometric means between -sqrt2 and -4sqrt2. Answer: -2, 2sqrt2, -4 Thanks
September 13, 2008 by Lucy

Maths
1..The first 2 terms of a geometric progression are the same as the first two terms of an arithmetic progression.The first term is 12 and is greater than the second term.The sum of the first 3 terms od the arithmetic progression is 4/3 less than the sum of the first 3 terms of...
February 3, 2013 by Lucas

geometry
What geometric postulate justifies statement: if AB is congruent to CD and CD is congruent to EF, then AB is congruent to EF. Two geometric objects that are congruent to the same third object are congruent to each other.
December 7, 2006 by Nicole

Math
1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... 2. Is this a geometric sequence? 2x, (4x-2), (6x-4), ..... 3. Show the equivalent values of the decimal 0.7575757575..... in fraction form. 4. What is the sum of the geometric sequence 4/3, 2/3, 1/3, ...
October 16, 2014 by Brianna

Math
first three terms of a geometric sequence are the same as the 1st, 9th and 11th terms of an arithmetic sequence, respectively. What is the common ratio in the geometric sequence ? Thanks!
May 12, 2012 by Matthew

Arithmetic
The first, second and third terms of a geometric progression are 2k+3, k+6 and k, respectively. Given that all the terms of geometric progression are positive, calculate (a) the value of the constant k (b) the sum to infinity of the progression.
June 16, 2014 by Tara

geometric sequence
The sum of the 2nd and 5th terms of a geometric sequence is 3.5. The sum of the 3rd and 6th is -7. Determine the ratio r of the sequence and the first term a.
September 27, 2014 by h

Geometric Sequence
Find the fourth term (a4) of geometric sequence if the first term (a1) is 2 and the common ratio, r is 4.
January 14, 2012 by Embraced

math
1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 A)15 B)15/2 C)-15 D)1/15 I chose A 2)Find the sum of the infinite geometric series. Sigma sign with infinity symbol above and n=1 below. To the right 20(-1/4)n-1 A)25 B)80/3 C16 D)does not exist I chose A 3)Find the...
December 12, 2007 by Jon

pre algebra
solve whether the sequence is arithmetic or geometric if it is arithmetic or geometric,state the common difference or common ratio and write the next three terms of the sequence 10,18,26,34
May 3, 2012 by keith

college precalculus I still dont get it
Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. 1. t-3,t-2, t-1, t... 2. 3/4,1/2,1/3,2/9... 3. 1,-3/2,2,-5/2....
May 9, 2015 by kendrick

Math
1. Find the common ratio and the 7th term of the sequence 2/9, 2/3, 2, 6, 18, ..... 2. The 3rd and 5th terms of a geometric sequence are 2 and 1/2 respectively. What is the first term? 3. Find the geometric mean between: a. 1/2 and 1/3 b. sqrt5 - sqrt2
October 7, 2014 by Erin

Maths
Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000. How many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?
April 29, 2013 by ianian

algebra
Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000. How many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?
April 29, 2013 by deli

college precalculus
Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. 1. t-3,t-2, t-1, t... 2. 3/4,1/2,1/3,2/9... 3. 1,-3/2,2,-5/2....
May 9, 2015 by Kendrick

precalculus no clue
Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. . t-3,t-2, t-1, t... . 1,-3/2,2,-5/2....
May 9, 2015 by Anonymous

Algebra
Need to get these problems checked-- 21. Suppose inflation of money is at a rate of 3% per year in the US. How much will a $1 candy bar cost in 30 years? 1.03^30 * 1= $2.43 22. Find the next 3 terms of the geometric sequence 4, 10, 25. 125, 625, 3125? ..Not sure about this. 23...
June 17, 2010 by mysterychicken

math(need 2nd opinion)
1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 A)15 B)15/2 C)-15 D)1/15 I chose A 2)Find the sum of the infinite geometric series. Sigma sign with infinity symbol above and n=1 below. To the right 20(-1/4)n-1 A)25 B)80/3 C16 D)does not exist I chose A 3)Find the...
December 12, 2007 by Jon

Math
Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000 (inclusive). How many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?
May 1, 2013 by Maths lover Please Help...

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