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July 25, 2014

Homework Help: Math: Arithmetic

Recent Homework Questions About Arithmetic

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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...
Wednesday, August 1, 2012 at 12:41pm

arithmetic
Three men are working together can finish a house repair job in 10 days. How many days will 5 men working at the same rate finish the same job?
Wednesday, July 25, 2012 at 9:39am

Precalc
Find a4 for the arithmetic series with s4=-36 and a1=9
Saturday, July 21, 2012 at 8:00pm

Math
an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n - 3) Answer -6, -2, 2, 6 -1, 1, 3, 5 -2, -4, -6, -8 -2, 2, 6, 10 3 points Question 3 Write the first ...
Tuesday, July 17, 2012 at 10:29am

Math
The average (arithmetic mean) and median of the five numbers a,a,b,c, and c are 20 and 30, respectively. If a < b < c, what is the value of a + c?
Wednesday, July 11, 2012 at 4:20am

AP Calculus
Find the sum of the first n terms of the sequence. The sequences are either arithmetic or geometric. 13. -1, 11, -121, ...; n = 9 A. 235,794,769 B. 429,981,696 C. -429,981,696 D. 196,495,641 E. -196,495,641 F. -235,794,769 I know that n = # of terms (9) d = -11 a = -1 formula...
Tuesday, July 10, 2012 at 9:58pm

Math PLEASE HELP PLEASE PLEASE PLEASE
Question 1 Write the first four terms of the sequence whose general term is given. an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n - 3) Answer -6, -2, ...
Tuesday, July 10, 2012 at 10:42am

Math
Question 1 Write the first four terms of the sequence whose general term is given. an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n - 3) Answer -6, -2, ...
Tuesday, July 10, 2012 at 8:36am

algebrall
Which is an arithmetic sequence? A. 1, 4, 9, 16, . . . B. 2, 1, –1, –4, . . . C. 4, 8, 16, 32, . . . D. 21, 9, –3, –15, . . . . help please
Tuesday, June 26, 2012 at 11:12am

arithmetic
what is 4.2% of $24,000?
Tuesday, June 26, 2012 at 10:47am

arithmetic
is 10, 10.25, 10.50625, 10.76890625 an arithmetic sequence
Sunday, June 24, 2012 at 7:06pm

ALGEBRA
Suppose the modified quota is 9.27. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Saturday, June 16, 2012 at 8:31pm

Math
Suppose the modiefied quota is 5.37. Find the lower quotas and the upper quotas. Find the arithmetic means of the lower and upper quotas. Find the geometric means of the lower and the upper quotas. Round the given modified quotas by comparing it with the geometric means.
Saturday, June 16, 2012 at 2:32pm

ALGEBRA
Suppose the modified quota is 9.27. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Thursday, June 14, 2012 at 6:41pm

arithmetic
lim_(x->0) (1/x^2-1/(sin^2(x)))
Thursday, June 14, 2012 at 2:38pm

arithmetic
lim(x->1)( x^(n+1)-(n+1)+...n)/(x-1)^2
Thursday, June 14, 2012 at 2:10pm

math
Find the sum of the arithmetic progression 4 + 9 + 14 + 19 + …….94 + 99 + 104
Wednesday, June 13, 2012 at 1:44pm

arithmetic
if tanx+cotx=2 then the value of tan^5x + cot^10x is
Wednesday, June 13, 2012 at 7:08am

Math
Suppose the modified quota is 6.47. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Tuesday, June 12, 2012 at 11:06pm

math - Can someone please help to solve
what is the answer to 1.)Find the lower quota of 8.87, upper quota, 2.)arithmetic mean of the lower and upper quotas, 3.)the geometric mean of the lower and upper quotas, 4.)Round the given modified quota by comparing it with the arithmetic mean and 5.)Round the given modified...
Monday, June 11, 2012 at 12:38pm

Math
A person just fitted for contact lenses is told to wear them only 2 hours the first day and to increase the amount of time by 20 minutes each day. After how many days will the person be able to wear the contacts for 14 hours? *Solve using a arithmetic series
Sunday, June 10, 2012 at 10:55am

algebra
Suppose the modified quota is 3.27 Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Friday, June 8, 2012 at 10:51pm

math
Use algebra pieces and mental arithmetic to determine four consecutive odd numbers who sum is 64. Sketch and label your algebra piece model and explain how you solved the problem.
Saturday, June 2, 2012 at 7:37pm

Math
Find the sum of the arithmetic series. 20 (Sigma Sign) 2n + 7 x= 1 Formula: Sn= a1 (1 - r^n / 1 - r)
Tuesday, May 29, 2012 at 9:47pm

Maths
In the following problems, Θ = 20 + units digit of your day of birth. For example, if you were born on April 1st, then Θ = 20 + 1 = 21. If you were born on March 30th, then Θ = 20 + 0 = 20. 1. Alok and Bhanu play the following game on arithmetic expressions. ...
Sunday, May 27, 2012 at 7:32am

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

Math
Find n if S(n) = 23,001 for the arithmetic series 4+7+10...
Wednesday, May 23, 2012 at 3:55pm

math
Find S(sub 73) for the arithmetic series 4 + 7 +10....
Tuesday, May 22, 2012 at 3:04pm

arithmetic
Sam wants to pack some candies into a box with a volume of 1.5 cubic meters. Each candy has a volume of 1 cubic centimeter. How many candies will fit in the box?
Monday, May 21, 2012 at 6:43pm

Algebra 2
Find the arithmetic mean a n-1=3.9, a n+1=7.1
Thursday, May 17, 2012 at 10:56am

Algebra
find the arithmetic mean A_n-1_-3.9, A_n+1_=7.1
Thursday, May 17, 2012 at 10:38am

alg 2
Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.
Tuesday, May 15, 2012 at 4:21pm

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!
Saturday, May 12, 2012 at 9:41pm

arithmetic
On a blueprint in which 2inches represent 5ft, the length of a room measures 7 1/2inches. The actual length of the room is
Friday, May 11, 2012 at 3:03pm

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

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
Thursday, May 3, 2012 at 5:31pm

math
Write four arithmetic means between 35 and 98.
Wednesday, May 2, 2012 at 3:56pm

math
For the arithmetic series 13+19+... a. find tsub27 b. find Ssub27 c. if tsubn = 445, find n
Wednesday, May 2, 2012 at 3:22pm

Utech
The 9th term of an Arithmetic Progression is 8 and the 4th term is 20. Find the first term and the common difference.
Tuesday, May 1, 2012 at 11:25pm

math
An arithmetic series has a first term 8 and third term 20. What does the fifth term equal? What does the second partial sum equal?
Sunday, April 29, 2012 at 12:43am

math
A sequence has t(sub1) = 5 and t(sub2) = 15 a. if the sequence is geometric, what is the common ratio? What do t(sub3) and t(sub4) equal? b. if the sequence is arithmetic, what is the common ratio? What do t(sub3) and t(sub4) equal?
Saturday, April 28, 2012 at 11:16pm

arithmetic
how to the framing to the nearest 1 of 3over4
Thursday, April 26, 2012 at 10:14am

Math
Deterimine the value of t20 in the followinf arithmetic sequence: 1, -2, -5, -8, .........
Wednesday, April 25, 2012 at 10:08am

arithmetic
2. A person walking along a straight road observed that at two consecutive kilometre stones the angles of elevation of a hill front of him are 40o and 80o respectively. Find the height of the hill.
Tuesday, April 24, 2012 at 3:39am

math
Write three arithmetic and three geometric means between 4 and 324
Saturday, April 21, 2012 at 4:03pm

Math
A sequence is formed by adding together the corresponding terms of a geometric sequence and and an arithmetic sequence.The common ratio of the geometric sequence is 2 and the common difference of the arithmetic sequence is 2.The first term of the new sequence is 1 and the ...
Thursday, April 12, 2012 at 9:21am

Arithmetic
Find a geometric series which has a third term of 7/4 and a sum to infinity of 14.
Tuesday, April 10, 2012 at 4:15pm

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

arithmetic
To calculate a 15% tip on a $24 bill a customer adds $2.40 and half of $2.40, or $1.20, to get $3.60. Is this method valid? Why or why not?
Friday, April 6, 2012 at 9:38pm

arithmetic
how to solve x^2*x=8556
Friday, March 30, 2012 at 2:13am

ACT
In ACT math question do they ask boyt arithmetic sequence and series? Geometric sequence and series.Matrices. Permutations.
Wednesday, March 28, 2012 at 8:40pm

Maaaaaaaath
the first three terms of an arithmetic sequence are x-2;2x+6 and 4x-8 respectively..determine.....(1)x (2) the 20th term (3) the sum of the first 20 terms of the sequence
Tuesday, March 27, 2012 at 5:21pm

math
Which describes this type of series? -20 - 18 - 15 - 11 … I think it is both arithmetic and geometric
Thursday, March 22, 2012 at 1:48am

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: −...
Thursday, March 22, 2012 at 1:45am

arithmetic
The pet shop owner told jean to fill the new fish tank 3/4 full of water.Jean filled the tank 9/12 full.What fraction of the tank does she still need to fill?
Wednesday, March 21, 2012 at 9:14pm

arithmetic
Please complete the following sequence so that, after the first two terms, each successive term is the average of all the preceeding terms. 20__ __ 28 __ __
Monday, March 19, 2012 at 3:27am

Algebra 2
Write a rule for the nth term of the arithmetic sequence. ( I'm not sure how I'm suppose to write the numbers below a :C so bare with me ) a(2) = - 28, a(20) = 52 I used the formula a(n) = a(1) + ( n-1)d a(20) = a(1) + (20-1)d > 52 = a(1)+19d a(2) = a(1) + (2-1)d &...
Thursday, March 15, 2012 at 1:21am

arithmetic
find comparsion as a ratio reduce to lowest term of 47ft and63yd.
Saturday, March 10, 2012 at 5:13pm

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

English
Writeacher, I really need your help to paraphrase the beginning of Chapter 2 taken from Dickens's "Hard Times". In particular, I would like to simplify Mr. Gradgrind's description, reduce it to a paragraph and turn it into a fill-in-the-blank activity. (I don...
Wednesday, March 7, 2012 at 1:07pm

Maths
Find 8 terms of the arithmetic progression if the second term is 2 and the sixth term is 5
Monday, March 5, 2012 at 11:25pm

arithmetic
a board 2 yards long. If 6 inches from one end was cut off. How many inches long was the shelf.
Monday, March 5, 2012 at 7:56pm

arithmetic
Water is pulled up from a well in a bucket on a rope the winds on a cylindrical drum 15cm in diameter it takes 28turns of the drum to pull the bucket up from the bottom of well how deep is the well? Use the value 22 over for radius
Friday, March 2, 2012 at 1:27pm

arithmetic
find the common difference of A.P whose first term is 5 and the sum of its first 4 terms is half the sum of next 4 terms
Friday, March 2, 2012 at 6:31am

arithmetic
an ap consists of 21 terms.the sum of 3terms in the middle is 129 and of the last three is 237 find the AP.
Thursday, March 1, 2012 at 11:21pm

arithmetic
an ap consists of 21 terms.the sum of 3terms in the middle is 129 and of the last three is 237 find the AP.
Thursday, March 1, 2012 at 11:18pm

arithmetic
find the sum of all 3digits numbers ,which leave the remainder three when divided by 5.
Thursday, March 1, 2012 at 11:18pm

Maths
The first term of an arithmetic sequence is 2. The first, third and eleventh terms are the first three terms of a geometric sequence. Determine the seventh term of the geometric sequence
Thursday, March 1, 2012 at 4:58pm

arithmetic
I have a 10"x13" rectangle baking pan, 2" deep. I am having a party and need to know how many pieces can be cut for 50 people? Or how many can be cut?
Thursday, March 1, 2012 at 1:55pm

arithmetic
in an AP, if the 5th and 12th terms are 30 and 65 respectively. what is the sum of first 20terms
Thursday, March 1, 2012 at 1:28pm

arithmetic
if 6 times the sixth term is equal to 15 times the fifteenth term ,find its 21st term
Wednesday, February 29, 2012 at 10:47am

arithmetic
If 10 times the 10 th term of an AP is equal to 15 times its 15 th term, show that its25 th term is zero.
Tuesday, February 28, 2012 at 10:51am

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.
Tuesday, February 28, 2012 at 3:32am

arithmetic
determine the A.P whose fourth term is 18 and the difference of the ninth term from the fifteenth term is 30.
Monday, February 27, 2012 at 3:55am

arithmetic
An arithmetic n geometric sequence have the same first term 2.with the 2nd term x. the sum of the 3rd term of the AS is equal to the 3rd term of the GS. Give the first 3 terms of both sequences.
Sunday, February 26, 2012 at 5:32pm

arithmetic
in a geometric sequence the first term is 48 and the fifth term is 3-Find the first 5 terms
Sunday, February 26, 2012 at 5:23pm

Statistics
Find Maximum Likelihood Estimator of Gamma Distribution Given: f(x; β) = [ 1/( β^2) ] * x * e^(-x/ β) for 0 < x < infinity EX = 2β and VarX = 2(β^2) Questions: 1/First, I believe this is a gamma distribution with alpha = 2. Is that right? 2/Find ...
Saturday, February 25, 2012 at 7:51pm

arithmetic
What makes the mode decrease In math?
Sunday, February 19, 2012 at 12:37pm

arithmetic
6(x-6)+2=8(x+2)-8
Sunday, February 19, 2012 at 2:41am

arithmetic
convert to inches, 30mm wide and 40 mm long
Saturday, February 18, 2012 at 2:25pm

arithmetic
Laura sees 5 triangles she knows each triangle has 3 corners help laura sjip count to find how many corners are on 5 triangles
Wednesday, February 15, 2012 at 8:15pm

math
In the following problems, Θ = 20 + units digit of your day of birth. For example, if you were born on April 1st, then Θ = 20 + 1 = 21. If you were born on March 30th, then Θ = 20 + 0 = 20. You can solve any three of the seven given problems. 1. Alok and Bhanu ...
Wednesday, February 15, 2012 at 9:35am

arithmetic
When Joe died he had 1200 acres of apple orchards. Rebecca wants to plant four apple trees. She was told to plant them 8 to 33 feet apart. If she plants the trees at the four corners of a square, what is tht minimum number of square feet in her tiny orchard
Wednesday, February 8, 2012 at 7:33pm

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?
Tuesday, February 7, 2012 at 9:17am

Math
The 3rd and 12th terms of an arithmetic progression are 12 and -24 respectively. What is the 50th term?
Monday, February 6, 2012 at 11:07am

arithmetic
Kate ate 1/3 of the cookies she made for the bake sale. IF she ate 12 cookies, how much will she make if she sells wach remaining cookie for $0.15 each?
Saturday, February 4, 2012 at 4:18pm

arithmetic
A and B can complete a piece of work in 8 and 10 days respectively However they work alternately one day each with beginning the work In how much time will the work be completed?
Friday, February 3, 2012 at 6:05am

math
Write an expression from the model below and then simplify the expression. Positive Negative Which equation is modeled on the number line below? (-56)/(-8) = 3- (-4)= 7.1 (Rational Numbers) No Calculators Fill in the chart below. Base of 10 Whole Number or Fraction Decimal ...
Thursday, February 2, 2012 at 3:03pm

arithmetic
5 days a week in a 12 x 12 room 8 hours a day for 5 months approximate amount of electricity used
Tuesday, January 31, 2012 at 9:45pm

arithmetic
The sum of the first 10th term of an a.p is 255,the sum of the first 20 term is 1010.find the next 2020 term of the progression
Tuesday, January 31, 2012 at 1:16pm

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

Math
A sequence of four integers is both arithmetic and geometric. if the sum of the four numbers is 20, find the first integer in the sequence.
Sunday, January 29, 2012 at 4:32pm

arithmetic
write 14 over 4000 as a decimal
Sunday, January 29, 2012 at 3:04pm

Math (11)
The sum of the first 16 terms of an arithmetic sequence is 23 times the sum of the first 4 terms. Find the 10th term of the sequence if the first term is 2
Friday, January 27, 2012 at 6:33pm

chemistry
do the arithmetic and give the answer to the correct number of significant figures. (1.5 x 10^-4 x 61.3) + 2.01 =
Monday, January 23, 2012 at 12:52am

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

Arithmetic
Given the sequence Tq=-7+3(q+4) find T4,and x if Tx=50.
Saturday, January 21, 2012 at 1:10pm

arithmetic
The nth term of the sequence 4,11,18,...is167 find n
Saturday, January 21, 2012 at 1:01pm

Mathematics
The 10th term of an arithmetic sequence 17 and the16th is 44,find the first three terms in the sequence
Saturday, January 21, 2012 at 4:30am

arithmetic
the sum of the 4th and 8th terms is 10, and the sum of the 6th and 12th terms is 22. Find the first three terms.
Thursday, January 19, 2012 at 11:57am

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