Saturday

April 19, 2014

April 19, 2014

Number of results: 216,387

**Math**

Which represents the type of sequence: 12, 22, 30, 36, 41,
? neither arithmetic nor geometric both arithmetic and geometric arithmetic geometric
*Saturday, March 10, 2012 at 1:11am by Brett *

**Math - Arithmetic**

Qn: Given that 3, b, c and 18 are an Arithmetic Progression. Find the value of b and c.
*Tuesday, March 1, 2011 at 2:33am by Student55*

**arithmetic!**

Your school subject is math or arithmetic. 12 * 1.075 * 1.15 = ?
*Thursday, February 20, 2014 at 5:04pm by Ms. Sue*

**math**

1. Use the given arithmetic sequence to answer the following problems. Arithmetic sequence: 10, 15, 20, 25, 30,
. a. Use the formula to find the 75th Term of the given Arithmetic Sequence I. Formula: II. Work: b. Use the formula to find the nth Term of the given Arithmetic ...
*Friday, March 20, 2009 at 3:44pm by angell*

**statistics**

A source in the Internal Revenue Service has stated that historically 90% of federal tax returns filed are free of arithmetic errors. A random sample of 25 returns are selected and checked carefully for arithmetic errors. Assuming independence, find the probability that a. all...
*Thursday, August 30, 2012 at 10:33pm by Sarah*

**arithmetic**

Tell whether the sequence is arithmetic. If the sequence is arithmetic, write a function rule to represent it. 12, 9, 6, 3, ...
*Monday, January 30, 2012 at 8:28pm by saul*

**Mathematics : Arithmetic Sequence**

The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively. a)Find the 1st term and the common difference of the arithmetic sequence. b)Find the general term of the arithmetic sequence.
*Sunday, September 7, 2008 at 6:10am by Charmian*

**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...
*Tuesday, March 19, 2013 at 10:41am by Cassie*

**math**

two terms of an arithmetic sequence are 15 and 45. Create three different arithmetic sequences given these terms
*Monday, January 10, 2011 at 10:14pm by Anonymous*

**Math - Arithmetic & Geometric**

An arithmetic sequence is represented in the following table. Enter the missing term of the sequence.
*Monday, February 28, 2011 at 5:08pm by Anonymous*

**math**

I need a few examples of Arithmetic sequences in our daily lives. I also need the general formula of an arithmetic sequence. Can anybody help?
*Wednesday, October 5, 2011 at 10:58am by Howler*

**math**

term given by x+2,3x-1,and 4x-1 form an arithmetic sequence. find the value of x. i didn't get it how to start this question and how it forms arithmetic sequence?
*Wednesday, January 9, 2013 at 6:58pm by Riana*

**algebra..help please. this is so hard.**

1. Use the given arithmetic sequence to answer the following problems. Arithmetic sequence: 10, 15, 20, 25, 30,
. a. Use the formula to find the 75th Term of the given Arithmetic Sequence I. Formula: II. Work: b. Use the formula to find the nth Term of the given Arithmetic ...
*Friday, March 20, 2009 at 3:44pm by angell*

**arithmetic**

Doesn't your computer have a numbers key? It's much easier to do math that way. You will need to use parentheses to clarify the order of operation. (-5/-3) - 2*(-1/3) - (21/7) = (5/3) +(2/3) -3 = ? This is not an algebra question. You are just performing basic arithmetic ...
*Tuesday, November 8, 2011 at 7:02pm by drwls*

**math**

apply arithmetic progression formula !If you don't know then search arithmetic progression on GOOGLE!
*Thursday, October 3, 2013 at 9:46pm by help()!!!!!*

**arithmetic**

Two arithmetic progression have thd same first and last terms.the first arithmetic progression has 21 terms with a common difference of 9.How many terms has the other arithmetic progression if its common difference is 4?working and answer.thans
*Thursday, October 14, 2010 at 4:49pm by William*

**arithmetic**

The initial term of an arithmetic sequence is 5. The eleventh term is 125. what is the common difference of the arithmetic sequence?
*Tuesday, October 25, 2011 at 1:10pm by Jane*

**Mathematics : Arithmetic Sequence**

Consider the arithmetic sequence x+2, 18-x, 14+x,... a) Find the value of x. b) Find the general term of the arithmetic sequence.
*Sunday, September 7, 2008 at 6:01am by Charmian*

**Math - Arithmetic Sequences**

The third term of an arithmetic sequence is 15, and the fifth term is 37. What is the first term?
*Saturday, January 14, 2012 at 3:35pm by Anonymous*

**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 ...
*Tuesday, March 19, 2013 at 10:48am by Cassie*

**Math**

A sequence is called an arithmetic progression of the rst order if the dierences of the successive terms are constant. It is called an arith- metic progression of the second order if the dierences of the successive terms form an arithmetic progression of the rst order. In ...
*Friday, May 11, 2012 at 6:47am by Bhupendra*

**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) ...
*Thursday, April 11, 2013 at 4:46pm by jessie*

**arithmetic**

How do you find the sum number of an arithmetic sequence? I forgot and my textbook does not explain it well.
*Sunday, June 21, 2009 at 11:47pm by Daniel*

**arithmetic**

put these sequences in standard form arithmetic a1=a6=11
*Thursday, July 22, 2010 at 8:56pm by jonay*

**arithmetic**

find the sum of these arithmetic series 13+24+35+...+156
*Friday, May 6, 2011 at 3:13pm by nel*

**arithmetic**

What is the sum to 15 terms of an arithmetic progression whose 8th term is 4?
*Monday, July 4, 2011 at 5:01am by vinay*

**arithmetic**

find the 25th term of the arithmetic sequence 24, 19, 14, 9 ...
*Sunday, July 10, 2011 at 3:14pm by ashely*

**arithmetic**

Select the first five terms in the arithmetic sequence an = 4n, starting with n = 1.
*Tuesday, April 1, 2014 at 1:04am by Anonymous*

**arithmetic**

find the seventh term of an arithmetic progression 5,7,11,15
*Friday, July 1, 2011 at 5:04pm by Anonymous*

**arithmetic**

What is the sum of the arithmetic sequence 22, 13, 4
if there are 28 terms?
*Sunday, September 4, 2011 at 2:18pm by Joe*

**arithmetic**

Do you mean an arithmetic SERIES? (With the accent in the syllable MET?) In that case, "arithmetic" is an adjective with a specific meaning. There are many other kinds of series. If so, the difference between consecutive terms must be constant. That means that 3x + 5 = 6x - 10...
*Saturday, January 21, 2012 at 1:18pm by drwls*

**arithmetic**

What is the use of arithmetic progression in a circular race track? Please answer soon !
*Tuesday, December 21, 2010 at 10:26pm by Mohit*

**arithmetic**

The first three terms in an arithmetic are given by x,4x+5 and 10x-5.find the value of x.
*Saturday, January 21, 2012 at 1:18pm by Vivian*

**arithmetic**

Determine the 10th and 21st terms of the arithmetic sequence- 4+7x, 5+9x, 6+11x
*Tuesday, April 10, 2012 at 11:28am by Nkululeko Hadebe*

**Math**

Tell whether each sequence is arithmetic. Justify your answer. If the sequence is arithmetic, write a function rule to represent it. 15. 128, 64, 32, 16... 16. 3, 3.25, 3.5, 3.75..
*Wednesday, January 8, 2014 at 10:48pm by Macie*

**arithmetic**

State whether the following sequence is arithmetic, geometric, or neither. 0, 1, 4, 9, 16, 25, 36, ....
*Sunday, February 27, 2011 at 7:35am by Anonymous*

**arithmetic**

Write and solve an expression to find the nth term of each arithmetic sequence... 3,7,11,15 n=8
*Tuesday, May 17, 2011 at 7:22pm by Olyvea*

**arithmetic**

is this following sequence arithmetic is so identify the common difference -73,-44,-15,14
*Saturday, October 30, 2010 at 10:09pm by whitney*

**arithmetic**

Find the sum of the first 40 terms of the arithmetic sequence. 19, 24, 29, 34
*Wednesday, November 17, 2010 at 9:22pm by Lindsay*

**arithmetic**

Find the 30th term of the arithmetic sequence: an = 7 + (n 1)(2)
*Wednesday, June 29, 2011 at 12:43pm by rowlo*

**10th grade Mathematics**

The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively. a)Find the 1st term and the common difference of the arithmetic sequence. b)Find the general term of the arithmetic sequence.
*Sunday, September 7, 2008 at 5:59am by Charmian*

**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...
*Sunday, April 28, 2013 at 4:20pm by Gabby*

**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 ...
*Sunday, February 3, 2013 at 4:27pm by Lucas*

**Math**

A = pi r^2 A = (22/7)(14)^2 , you do arithmetic answer in square feet (ft^2) in the second one r = D/2 so r = (1/2)(10/3) = 5/3 yard so A = pi r^2 A = (22/7)(25/9) you do arithmetic in square yards (yd^2)
*Monday, January 7, 2008 at 4:16pm by Damon*

**arithmetic**

what is the arithmetic mean of 3,5,7,9and 11?
*Monday, July 11, 2011 at 11:57am by Anonymous*

**Math**

Find the no. of terms 1. 3,5,7...33 2.-5,-1,3,...75 Solve each problem. 1. In the Arithmetic sequence 5,8,11,14.... what is n if a sub n is 32? 2.Find the sum of the first 20 terms of the arithmetic sequence -15,-7,31,43...
*Monday, January 21, 2013 at 5:16am by Aliza*

**arithmetic**

In an arithmetic series, the terms of the series are equally spread out. For example, in 1 + 5 + 9 + 13 + 17, consecutive terms are 4 apart. If the first term in an arithmetic series is 3, the last term is 136, and the sum is 1,390, what are the first 3 terms?
*Friday, September 24, 2010 at 5:45pm by Cennie*

**Math**

Tell whether the sequence is arithmetic. If it is, write a function rule to represent it. 0.2, -0.6, -1.4, -2.2 This is an arithmetic sequence, but I do not understand the function rule of A(n) = 0.2 - 0.8(n-1), which is the given answer.
*Sunday, November 17, 2013 at 3:47pm by Anonymous*

**arithmetic**

Given that an arithmetic sequence has a common difference of 5 and sum of the first 10 terms is 245, the first term is?
*Thursday, March 10, 2011 at 8:40pm by Donald*

**arithmetic**

In a certain arithmetic sequence, t6 + t15 = 141 and the common difference is 7. What is the first term of the sequence? explain how to do this please
*Wednesday, August 11, 2010 at 5:40pm by bob*

**arithmetic**

Find the sum of the 25th term to 50th term of the arithmetic progression 28,23,18, ...
*Sunday, January 24, 2010 at 12:10am by Eryea*

**algebra 1**

Tell whether the sequence is arithmetic. If the sequence is arithmetic, write a function rule to represent it. 12, 9, 6, 3, ...
*Tuesday, September 24, 2013 at 5:45pm by bobby*

**arithmetic**

If the first term of an arithmetic sequence is 10 and the 13th term is 58, what is the common difference?
*Sunday, February 6, 2011 at 12:03am by Anonymous*

**arithmetic**

WHAT IS THE ARITHMETIC MEAN OF 3, 5, 7, 9 AND 11
*Wednesday, June 29, 2011 at 11:12pm by HEIDI*

**arithmetic**

what is the arithmetic mean of 3,5,7,9 and 11
*Monday, July 11, 2011 at 10:47am by keyonna*

**algebra**

is (1/2) - (3/2) = (1/6)-(1/2) if yes, then arithmetic, but it isn't. is (1/2) χ (3/2) = (1/6)χ(1/2) if yes, then geometric 1/2 χ 3/2 = 1/3 (1/6)χ(1/2) = 1/3 but (1/8) χ (1/6) = .75 (no good) so the sequence is neither arithmetic nor geometric.
*Sunday, April 19, 2009 at 11:37pm by Reiny*

**Arithmetic Series**

Find n for the arithmetic series with Sn = 360, a1=42 and an= -26
*Tuesday, January 10, 2012 at 9:25pm by Embraced*

**arithmetic**

If the first term of an arithmetic sequence is 2 and the 7th term is 3278, what is the common difference?
*Tuesday, April 16, 2013 at 10:29pm by Anonymous*

**arithmetic**

Divide 100 loaves of bread among five men so the amount is arithmetic sequence and the sum of the largest is seven times the amount of the two smallest.
*Tuesday, September 7, 2010 at 7:27pm by Anonymous*

**arithmetic**

In an arithmetic progression the sum of the first 10 terms is 50 and the 5th is three times the second term. Find the fisrt term and the common difference.
*Tuesday, April 12, 2011 at 4:46pm by Bless*

**arithmetic**

In wikipedia type "Arithmetic progression" you wil find everythink about Arithmetic progression Sn=sum of numbers Sn=(n/2)*[2a1+(n-1)*d] In this case: n=40 a1=19 d=5 S40=(40/2)*[2*19+(40-1)*5]=20*(38+39*5)=20*(38+195)=20*233=4660
*Wednesday, November 17, 2010 at 9:22pm by Bosnian*

**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 ...
*Saturday, January 14, 2012 at 3:35pm by Max*

**Math**

I am to find all possible values of a and b where a, b are positive integers and to show that I have found all of them.For example: "2^3 = 3^1 + 5" is a satisfied equation where(a, b) are (3,1). I know that it can be solved using modular arithmetic but I am NEW to the concept...
*Thursday, October 26, 2006 at 2:14pm by Riddhi*

**math**

suppose an arithmetic sequence and a geometric sequence with common ration r have the same first two terms. show that the third term of the geometric series is r^2/(2r-1) tomes the third term of the arithmetic sequence
*Tuesday, February 17, 2009 at 9:41pm by isa*

**Math**

1. What are the next two terms of the following sequence? -3, 1, 5, 9... 2. What are the next two terms of the following sequence? -2, 4, -8, 16... 3. What is the common difference of the following arithmetic sequence? 13, -7, -27, -47... 4. What is the ninth term of the ...
*Saturday, January 15, 2011 at 2:58pm by Melanie*

**arithmetic**

State whether the following sequence is arithmetic, geometric, or neither. 10, 10.25, 10.50625, 10.76890625, .... (Points : 1) arithmetic sequence geometric sequence neither
*Sunday, October 2, 2011 at 3:03am by catherine*

**pre-algebra**

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant. The sum of the members of a finite arithmetic progression is called an arithmetic series. The sum S of the first n ...
*Sunday, August 14, 2011 at 12:45pm by Anonymous*

**arithmetic**

I think each term is the previous term minus 2. So it's an arithmetic sequence where a=3 and r= -2. So the nth term (starting with n=0) of the sequnce is 3 - 2n
*Thursday, February 4, 2010 at 9:50am by Candace*

**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" ...
*Saturday, May 11, 2013 at 3:56am by Shin*

**arithmetic**

Find 4 arithmetic means between -root(5) and 12 root (5)
*Monday, November 7, 2011 at 7:37pm by Anonymous*

**arithmetic**

the second term of an arithmetic sequence is 15,mand the sixth term is 43. what is the 289th term?
*Tuesday, November 29, 2011 at 4:09pm by kendra*

**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" ...
*Saturday, June 22, 2013 at 3:08am by Shin*

**arithmetic**

an arithmetic progression has 20 terms. the sum of all the even terms is 350. given that the first term is 5, find the common difference and the eleventh term.
*Tuesday, March 8, 2011 at 7:57am by rusya*

**arithmetic**

the first and second terms of an arithmetic progression are 161 and 154 respectively.the sumthe first m terms is zero.find the value of m
*Wednesday, February 9, 2011 at 6:35am by parth*

**10th grade**

The common difference of an arithmetic sequence is 4. The 13th term is 103. Find the general term of the arithmetic sequence.
*Sunday, September 7, 2008 at 5:59am by Charmian*

**arithmetic**

The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence? 14/13 25/7 4
*Saturday, October 30, 2010 at 10:09pm by Shawntrell*

**arithmetic**

there are n arithmetic means between 5 and 32 such that the ratio between the 3rd and 7th means is 7:13,find the value of n.
*Tuesday, May 14, 2013 at 1:45pm by Hussain*

**arithmetic**

The subject is not high school. It is arithmetic at middle school level, or lower. You need to show parentheses to clarify the order that the operations are performed. 3*2 = 6 Perhaps you just need to add 5/9 to 6
*Thursday, August 12, 2010 at 2:21am by drwls*

**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?
*Friday, October 26, 2012 at 4:13pm by Anonymous*

**math**

-4, 8, -16, 32 arithmetic 64, 128, 256 geometric -64, 128, -256 Geometric -48, 64, -80 the sequence is neither geometric nor arithmetic
*Thursday, May 9, 2013 at 6:26pm by Nisabel*

**mathematics**

The arithmetic mean of x y and z is 6 while x y z t u v and w is 9 calculate the arithmetic mean of t u v and w.
*Tuesday, April 30, 2013 at 5:05am by Frontman*

**mathematics**

the arithmetic mean of x,y and z is 6 while that of x,y,z,t,u,v and w is w. Calculate the arithmetic mean of t,u,v and w.
*Saturday, August 24, 2013 at 10:45am by lawrence*

**math 213 #18**

A student claims that every prime greater than 3 is a term in the arithmetic sequence whose nth term is 6n + 1 or in the arithmetic sequence whose nth term is 6n 1. Is this true? If so why?
*Tuesday, April 13, 2010 at 1:01am by dan*

**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 ...
*Thursday, August 23, 2007 at 11:23pm 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 ...
*Friday, August 24, 2007 at 5:50pm 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 ...
*Sunday, August 26, 2007 at 2:01am by Marissa*

**arithmetic**

What is the sum of a 10term arithmetic sequence where the first term is 3 and the last term is 75?
*Saturday, August 6, 2011 at 2:49pm by soka*

**arithmetic**

Use your definitions of the term of an arithmetic sequence a = -3 term(15) = a + 14d 53 = -3 + 14d solve for d
*Saturday, October 30, 2010 at 10:09pm by Reiny*

**math**

http://www.khanacademy.org/math/arithmetic/order-of-operations
*Wednesday, January 8, 2014 at 4:24pm by Ms. Sue*

**arithmetic**

The nth term of an arithmetic progression is defined by n = a + (n-1)d where, n = the nth term a = the first term d = the common difference Therefore, 58 = 10 + (13 - 1)d 48 = 12d d = 4
*Sunday, February 6, 2011 at 12:03am by helper*

**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 ...
*Friday, August 24, 2007 at 10:39am by Marissa*

**math**

What is the difference between geometric mean and arithmetic mean? Arithmetic mean of two numbers A and B is: (A + B)/2 Geometric mean of two numbers A and B is: sqrt(A*B) The geometric mean can be rewritten as follows: sqrt(A*B) = Exp{Log[sqrt(A*B)]} = Exp{1/2 [Log(A) + Log(B...
*Tuesday, July 17, 2007 at 3:40pm by Mary*

**math**

A student claims that every prime greater than 3 is a term in the arithmetic sequence whose nth term is 6n + 1 or in the arithmetic sequence whose nth term is 6n - 1. Is this true? if so, why?
*Thursday, December 23, 2010 at 2:36am by Andy *

**arithmetic**

For a given arithmetic sequence, the 90th term, is equal to -230 , and the 8th term, is equal to 16 . Find the value of the 31st term .
*Tuesday, May 11, 2010 at 9:05pm by Victoria*

**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)...
*Wednesday, December 12, 2007 at 8:53am by Jon*

**arithmetic**

Assuming you are working with arithmetic sequences, term(4) = a+3d = 20 term(7) = a+6d = 32 subtract the two equations: 3d = 12 d = 4 sub back into either top equation to find a term(n) = a + (n-1)d
*Tuesday, October 13, 2009 at 7:08am by Reiny*

**math**

You are dealing with an arithmetic series. a = 35, d=16 Sum(n) = (n/2)(2a + (n-1)d) 700 = (n/2)(70 + 16(n-1)) 1400 = n(70 + 16n - 16) 1400 = 54n + 16n^2 16n^2 + 54n - 1400 =0 solve the quadratic. But remember that n must be a positive whole number. Also check my arithmetic, I ...
*Monday, January 31, 2011 at 8:26pm by Reiny*

**arithmetic**

An arithmetic progression (A.P) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. If the initial term of an arithmetic progression is a1 and the common difference of successive members is d, then the nth term of...
*Monday, February 27, 2012 at 3:55am by Bosnian*

**arithmetic**

Find the sum of the first 25 terms of an arithmetic sequence whose 7th term is −247 and whose 18th term is −49.
*Saturday, May 26, 2012 at 5:48am by jae*

**statistics**

A source in the Internal Revenue Service has stated that historically 90% of federal tax returns filed are free of arithmetic errors. A random sample of 25 returns are selected and checked carefully for arithmetic errors. Assuming independence, find the probability that
*Wednesday, August 29, 2012 at 6:36pm by Anonymous*

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