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July 31, 2014

Search: 4th term is 11 and 20th is -21 find the first term and common difference

Number of results: 61,917

Maths
1) In the arithmetic progression, the 8th term is twice the 4th term and the 20th term is 40. Find the common difference and the sum of the terms from the 8th to the 20th term inclusive. 2) Find the least number of terms of the AP, 1+3+5...that are required to make a sum ...
April 17, 2008 by Anonymous

MATH
Find the value of A + B if the A is the first term and B is the common difference of the sequence whose 4th term is 3 and 20th term is 35
November 7, 2011 by Katie

mercy land
the 2nd, 3rd, and 4th term of an arithemetic progression are x-2, 5 and x+2 respectively, calculate the value of x and hence find the 20th term..
November 8, 2011 by victor

Core mathematics
The 4th term of an A.P.is 37 and the 6th term is 12 more than the 4th term.find the 1st and the 7th term of the sequence.
November 26, 2011 by Sequence and series

PreCalc
1) Determine the value of r (put this number in the first blank) and then determine the value of the 10th term of the geometric sequence. Do not use any decimals or mixed numbers in your answers. Reduce all fractions to lowest terms. a1 = 2 and a4 = −1/4 2)Find d and ...
July 16, 2012 by Anonymous

arithmetic
the sum of the 3rd and the 4th term is 44 and the sum of the 10th and the 15th term is 203. what is the sum up to the 20th term?
February 7, 2012 by linda

Math
the sum of the 4th term and the 5th term is 12.if the 4th term of the progression is 8, find the common ratio and the 1st term of the progression.
January 15, 2011 by Malek

Precalc
Find a formula for the nth term if... a)the 8th term is 8 and the 20th term is 44 b) the 8th term is 4 and the 18th term is -96 thanks!! I am just confused how you do this if you dont know what n is.
May 12, 2013 by Rebekah

maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
June 12, 2013 by thabang

maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
June 12, 2013 by thabang

arithmetic progression
the 9th term of an AP is 52 while the 12th term is 70. find the sum of it's 20th term?
August 6, 2013 by oladepo

math
the 9th term of an AP is 52 while the 12th term is 70.find the sum of its 20th term
October 14, 2011 by Anonymous

math
d 9th term of an Ap is 52 while d 12th term is 70. find sum of it's 20th term?
August 6, 2013 by oladepo

math
pls help me out in dis ? dat says The 9th term of an Ap is 52 while d 12th term is 70 find d sum of it's 20th term?
August 7, 2013 by Abisola

math
The 4th term of an AP is 3 times its first term and the 7 term exceeds the 3 term by 1.Find the 10 term of an AP.
December 8, 2011 by Habooba

Math
The nth term of an A.P. Is 3 times the 5th term.(a)find the relationship between a and d.(b)prove that the 8th term is 5times the 4th term.
January 29, 2014 by Miracle

Maths
The 14th term of an Ap is double the 4th term.find the 10th term if the 2nd term is 8
October 2, 2013 by Hacker

arithmetic
THE SUM OF THE 2ND AND 5TH TERMS OF AN A.P IS 42. IF THE DIFFERENCE BETWEEN THE 6TH AND 3RD TERM IS 12, FIND THE: COMMON DIFFERENCE, 1ST TERM, 20TH TERM.
November 26, 2010 by JOSHUA BAME

Arithmetic Progression
In an AP the 6th term is half the 4th term and the 3rd term is 15. a. Find the fist term and the common difference. b. How many times are needed to give a sum that is less than 65?
September 17, 2012 by Math

arithmetic
The 9th term of an A.p is 32 while the12th termis70.find the sum of it 20th term
June 12, 2011 by Amidia racheal kamara

Geometry
n:1,2,3,4,5,6 f(n):0,1,3,6,10,15 find the nth term and the 20th term in the sequence
October 3, 2010 by Skylar

Math - Arithmetic Sequences
The sum of the 4th and the 14th term of an arithmetic sequence equals 22. The 9th term is 4 larger than the 4th term. Calculate the first term of the sequence. I've been trying to solve this for like an hour but I just can't figure out how to do it! I'd really appreciate your ...
January 14, 2012 by Max

Utech
The 9th term of an Arithmetic Progression is 8 and the 4th term is 20. Find the first term and the common difference.
May 1, 2012 by Jennifer

math
the 4th term of a geometric sequence is 1/2 and the tenth term is 1/128 find the 10th term?
February 7, 2013 by ian relacion

math
the 4th term of a geometric sequence is 1/2 and the tenth term is 1/128 find the 10th term?
February 7, 2013 by ian relacion

math
The 9th term of an AP is 8 and the 4th term is 20. Find the first term and the common difference.
April 6, 2013 by lindsay

math
the 10th term is 34 of arithmetic series and the sum of the 20th term is 710.what is the 25th term?
January 1, 2013 by Riana

arithmetic
The 8th term of an A P is 5times the third term while the 7th term is 9 greater than the 4th term.what are the first five term
November 4, 2011 by Anonymous

math
The 8th term of ap is 5time the 3rd term, while the 7th term is greater than the 4th term, write the first 5 term of the ap
March 30, 2012 by wale

maths
There are 6 terms in an A.P. 6th term is 3 times the second term and 4th term is 4 times the first term. if the 5th term is 15 find the terms
February 25, 2014 by jennifer

math
find the sum of the 20th term a=6 and r=2/3
November 3, 2010 by Ali

math help!
the 10th term is 34 of arithmetic series and the sum of the 20th term is 710 i.e S20=710.what is the 25th term?
January 1, 2013 by Riana

math
find the 4th term of an arithmetic sequence whose first term is -8 and whose 9th term is 32.
January 30, 2014 by breauna

Trig
Find the 20th term of an arithmetic sequence with a=1 and d=1/2
April 29, 2014 by Kiki

Algebra 2
The first term in an arithmetic series is 7 and the 17th is 49. What is the 20th term?
May 4, 2011 by Abbie

PRE CALC
The 20th term of an arithmetic sequence is 27 and the first term is -11. What is the common difference??
April 2, 2014 by Aly

Math
Name School Team Event 3: Logic and Reasoning (with calculators) 5th/6th grade Math Meet 08 For each number pattern, fill in the next five terms. (2 pts. each blank) ANSWER KEY 1st term 2nd term 3rd term 4th term 5th term 6th term 7th term 8th term 9th term 10th term 1) 2) 3...
March 30, 2012 by Anonymous

math
A G.P has 6 terms. If the 3rd and 4th term are 28 and -56 respectively find common ratio, first term and the sum of the G.P.
March 14, 2014 by princewill favour

Math ( Can You check my Work?)
1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8 when a1...
August 1, 2012 by Tony

arithmetic
the 20th term of a sequence with nth term 3+4(n-1) is what?
November 5, 2009 by Anonymous

Maths
In an A.P ratio of 3rd term and 5th term is 3:7. a)Find the ratio of the 4th and 6th term? b)Find the ratio of the 6th and 12th term?
January 22, 2014 by Liji

algebra ll
Need help please.. Identify -7x^3+6x^2+6x+9 Searching for the degree of the first term, 2nd term, 3rd term, 4th term and the degree of the polynomial? I thank you
May 5, 2012 by Alexis2

maths
in an A.p 6th term is half the 4th term and the 3rd term is 15.How many terms are needed to give a sum that 16 equal to 66.
March 7, 2012 by remyaravindran

math
The third term of a G.P is 24 and the sum of the first two terms is 288. If all the terms are positive,find a)the first term and the common ratio b)the sum of all the terms from 4th term to the 8th term
February 3, 2014 by Anonymous

arithmetic
if sum of 20th term in an AP is equal to sum of 30th term,what is the sum of 50th term of the AP?
December 23, 2010 by amit

math
1) If the sum of the first n terms of a series is Sn where Sn=2n-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP the 6th term is half the 4th term and the 3rd ...
April 17, 2008 by Anonymous

Math
1) If the sum of the first n terms of a series is Sn where Sn=2n-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP the 6th term is half the 4th term and the 3rd ...
April 17, 2008 by Anonymous

algebra 2
What is the 20th term of the sequence that begins -3,6,-12,24? A. 524,288 B 524,288 C. 1,572,864 d. 3,145,728 The term in a geometric sequence is 160. the 7th term is 40. What are the possible values of the 6th term of the sequence? You roll a standard, six sided number cube. ...
May 19, 2014 by Multiple choice please help

Math:A.P.
The 1st,3rd and 9th terms of an A.P are the three terms of a G.P.if the 7th term of the A.P is 19.calculate the 20th term of the A.P and the sum of the first 12terms of the G.P(LEAVING YOUR ANSWER IN INDEX FORM)
February 6, 2014 by Miracle

algebra
I'm pretty sure these are right but I just want to check. 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 ...
August 23, 2007 by Marissa

algebra
I'm pretty sure these are right but I just want to check. 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 ...
August 24, 2007 by Marissa

algebra
I'm pretty sure these are right but I just want to check. 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 ...
August 26, 2007 by Marissa

algebra
1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 a.143 b.136 c.140 d.133 an=a1+(n-1)d a20=3+(20-1)7 a20=3+(19)7 a20=3+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 an=a1+(n-1...
August 26, 2007 by Marissa

algebra(check)
I'm pretty sure these are right but I just want to check. 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 ...
August 24, 2007 by Marissa

Algebra 2
What is the 20th term of the sequence that begins -2,4,-8,16.....?
May 24, 2014 by Caleb

arithmetic
4th &7th term is 20 & 32 , find a ,d & nth
October 13, 2009 by payal

Algebra
What is the 20th term in the following arithmetic sequence? 1/2, 1, 3/2, 2
October 19, 2011 by Alexis

Algebra
Can someone help me with these two questions? What is the 50th term of the sequence that begins -4, 2, 8, 14...? What is the 20th term of the sequence that begins -3, 6, -12, 24...?
May 29, 2013 by Tina

math
in an ap the difference is between the 8th and 4th term is 20 and the 8th term is one and the half times the fourth term what is the common difference
November 8, 2013 by dammy

Maths
The 3rd term of an AP is 10 more than the first term while the fifth term is 15 more than the second term.find the sum of the 8th and 15 term of AP.if the 7th term is seven times the first term.
February 15, 2012 by Magana

history - 20th century
can i ahve some suggestions oif events in the 20th century?i can do a history topic(yawn) of anything at all from the 20th century. i know like the world wars,but what about more interesting sutff like mc hammer,tupac killed?
November 30, 2007 by anon

maths 4th grade
In end of term tests Zanna got the following marks mathematics 54/75 history 27/40 geography 39/50 english 48/60 french 25/40 art 15/20 what was her best subject her 2nd best her 3rd her 4th her 5th her 6th please show workings
June 26, 2009 by montana

arithmetic
In an AP the first term is 2 and the sum of the first five terms is one fourth of the sum of the next five terms. Show that the 20th term is -112.
February 28, 2012 by akash

Mathematics-please help quick!!
The first term of the sequence is -168 and every term after the first term is 8 more than the term immediately proceeding it. Find the 88th term.
June 10, 2012 by Scraffii

math
the fourth term of an arithmetic progression is equal to 3 times the first term and the seventh term exceeds twice the third term by 1 find the first term and the common differrence
February 7, 2014 by kruthi

math
Hi I need someone to check my answers I'll show whatever work I have but for time purposes I'll just post my answers because I think I have most of them correct. Thanks! 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7. A)143 B)136 C)140 D)133 I chose B 2)...
December 12, 2007 by Jon

Maths
The 5th term of an exponential sequence is 4 and of 2nd term is 35()find the 3rd term ()the 6th term ()the sum of the first 5th term?
May 17, 2011 by Job

arithmetic
first term and larst term of a geometric progression is 42.if the forth term is greater than the second term by 168, find the first term.the forth term.
September 17, 2011 by charles

Math
A G.p is such that the 3rd term is 9 times the first term, while the second term is 124 of the fifth. Find the fourth term
May 24, 2014 by Kingsley

math
in an AP the 10th term is 54 and 5th term is 4 times the 2nd term . Find the 1st term 'a' and common difference 'd'
February 3, 2014 by jomon

math
The sum of second term and fourth term of G.P is 30 and difference between sixth term and second term is 90,how to find third term
August 3, 2013 by suma

math
In an AP, the thirteenth term is 27, and the seventh term is three times the second term. Find the first term,?
January 20, 2012 by Babueddie

Government high school
A G.P has 6 terms. If the 3rd and 4th terms are 28 and -56 respectively,find: (a) the first term (b) the sum of the G.P
January 27, 2011 by Olawale azeez

Math
The 13th termof an arithmetic sequence is 61 and the 20th term of the squence is 82. Calculate the sum of the first 25 terms of the sequence
December 17, 2011 by Melissa

Arithmetic Sequence
Given the third term of an arithmetic sequence less than the fourth term by three. The seventh term is two times the fifth term. Find the common difference and the first term.
September 30, 2012 by Nina

Math Algebra
The first term of a geometric progression is more than the third term by 12. The fourth term is more than the second term by 4. Find: i.the first term a and the common ratio r. ii. the n'th term of the progression.
September 2, 2013 by Leda

Math
3,5,-5... The first term in the sequence of #'s shown above is 3. Each even # term is 2 more than the previous term and each odd # term, after the first, is -1 times the previous term. For example, the second term is 3+2, and the third term is (-1)x5. What is the 55th term of ...
May 20, 2007 by Mack

Math binomial formula and sequence
a) use the binomial formula to find the 5th term of the expansion (2x - 3)^8 ------ i got 90720x? b) Find a_n, the general term for a geometric sequence, given that the fourth term, a_4 is 16 and the seventh term is -128 c) Find the sum of 8+12+16+20+24+.....to 15 terms thanks!
May 25, 2014 by Kiirsty

maths
The 2nd term in Geometric sequence is -4 and the 5th is 32 ,find the general formula \term and the first 3 terms ,find the 18th term
January 21, 2014 by Awe

math
how would i find the sum of the 7 term. if i have 1st term = 11 and 7th term = 704.its a geometric series. i dont know how to find the difference?
January 2, 2013 by Riana

us history
would appreciate links to research: culture change to the US in the 20th Century, and major reform periods in the US in the 20th Century. Thank you very much.
December 10, 2009 by lm

Mathematics-please help!
The first term of the sequence is -168 and every term after the first is 8 more than term immediately proceeding it. Find the 88th term.
June 9, 2012 by Jeconiah

Mathematics-please help!
The first term of the sequence is -168 and every term after the first is 8 more than term immediately proceeding it. Find the 88th term.
June 9, 2012 by Jeconiah

Math
The sum of the first seventeen terms of an arithmetic series is 493 The third term is 11. Find the first term and the seventeenth term. The n-th term is 3*n + 2
December 21, 2006 by Blonde Glamour

Mathematics
The second term of a G.P is 12 more than the first term,given that the common ratio is half of the first term.find the fourt term of the G.P.
February 17, 2012 by Elom Charles

Math Help!
1. Find the 4th term in the binomial expansion.(2x + 3y)^6 2. Use synthetic division and the remainder theorem to find P(a). P(x)= x^5 + 3x^4 + 3x − 7; P(-1) 3. Factor the expression on the left side of the equation. Then solve the equation. x^6 + 128x^3 + 4096 = 0 4.) ...
May 8, 2014 by Larry

Precalculus
1. In an arithmetic sequence, the fifth term, u5, is greater than the first term, u1. The difference between these terms is 36. a) find the common difference 9? The tenth term of the sequence is double the seventh term . b) find u1 2.5? 2. Consider the function f(x) = ax^3 -3x...
May 5, 2014 by Anonymous

calculus
Throughout the 20th century, the yearly consumption of electricity in the US increased exponentially at a continuous rate of 7% per year. Assume this trend continues and that the electrical energy consumed in 1900 was 1.4 million megawatt-hours. Find the average yearly ...
January 19, 2012 by Cookie

algebra 2 help please/check
The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this sequence represents the ...
May 20, 2012 by jenny

algebra 2
The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this sequence represents the ...
May 19, 2012 by jenny

Algebra II
The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the series differ from the 6th term? Explain. Part C: If the nth term in this sequence represents the ...
May 27, 2012 by Danny

9th grade math
x to the 2nd power if x = 3/4 how do you find 3/4th to the 2nd power? 3/4th times 3/4th right? so the answer would be 9/16ths.. right?
September 9, 2010 by Melissa

20th century Europe
The 20th century European dominance was replaced by what?
February 1, 2014 by Jean

Sequence
Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, -2, -6, -10,...a sub n = a)6-4n b)6-2n c)10-2n d)10-4n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if 6 is equal to the ...
March 9, 2007 by raven31792

MATH
In an arithmetic sequence, the first term is 100 and the sixth term is 85. Find the common difference. Then, find the 50th term of the sequence. Do I use the formula an=a1+(n-1)d? If so, what would my "n" by in the equation?
January 16, 2011 by lYDIA

Math
1. Find the 12th term of the arithmetic sequence 2, 6, 10, . 2. Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3. 3. In the sequence 2, 6, 10, , what term has a value of 106?
June 15, 2014 by Annika

Maths
The first term of a g.p is 2 calculate the 4th given that common ratio ir 2
July 15, 2010 by The first term of a g.p is 2, calculate the 4th. Given that common ratio is 2

math
The 2nd, 3rd and 4th term of an ap are x-2,5,x+2 respectively ,calculate the value of x
March 30, 2012 by wale2

Math
The fifth term of an arithmetic progression is three times the second term,and the third term is 10.a)What is the first term,b)the common difference and c)the 15th term?
January 27, 2013 by Bethold

maths
Given that the first term of an A.P is 7 and its 10th term is twice its second calculate a)19th term b) sum of 28 term c) different between the 9th and 6th term
February 4, 2014 by kemi

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