Questions on Algebra: Sequences of numbers, series and how to sum them answered by real tutors!

Tutors Answer Your Questions about Sequences-and-series (FREE)

Question 314708: 24x +6y
Click here to see answer by checkley77(12844)

Question 314774: find the sum of the first five terms of the geometric sequence a=12, r=4
Click here to see answer by Fombitz(32388)

Question 315310: If today is Monday, and 1234 days passed, what day will it be?
Click here to see answer by user_dude2008(1862)

Question 315720: Evaluate the product of the following fractions:

Click here to see answer by Edwin McCravy(20056)

Question 315886: The next number in the sequence 1, 4/3, 2, 16/5, 16/3, 64/7��. is
(A) 128 / 9 (B) 92 / 5 (C) 16 (D) 108 / 7 (E) None of these

Click here to see answer by Alan3354(69443)

Question 315979: The length of a rectangle is 3 cm more than 2 times its width. If the area of the rectangle is 93 cm2, find the dimensions of the rectangle. Enter your answers in the blanks. Enter only the numeric values rounded to the nearest thousandth of a centimeter.
Width = __________cm, Length = _________cm.

Click here to see answer by checkley77(12844)

Question 316232: let (Un) be the sequence defined over real numbers by U0=2 and Un+1 = 1/2 Un +3
calculate U1 and U2
Click here to see answer by vleith(2983)

Question 316239: Sum X squared=
X 2 4 1 5 3
Y 15 25 10 40 30
r =
The r vale indicates:
a. moderately weak negative correlation between x and y
b. moderately strong negative correlation between x and y
c. weak positive correlation between x and y.
d. strong coorelation between x and y.
Click here to see answer by Fombitz(32388)

Question 316601: Find the tenth term of the geometric sequence with
a = 5 and r = 2.
Click here to see answer by stanbon(75887)

Question 316906: Find four numbers in A.P whose sum is 50 and in which the greatest number is 4 times the least
Click here to see answer by Fombitz(32388)

Question 316918: Find the mean for the following data.
Round to the nearest hundredth.
Value Frequency
1 5
3 8
5 10
7 3
9 4
Click here to see answer by Fombitz(32388)

Question 316993: 405, 135, 45, 15, ... whats the next number in the pattern
Click here to see answer by checkley77(12844)

Question 316794: a pool measuring 20 meters by 30 meters is surrounded by a path of uniform width. If the area of the pool and the path combined is 1344 square meters, what is the width of the path?
Click here to see answer by checkley77(12844)

Question 318095: what comes after 858251, 462486, 123552, 218251,......?
Please solve this one for me.
LATIF
Click here to see answer by Edwin McCravy(20056)

Question 318351: If x and y are two consecutive terms in the Fibonacci sequence, how would I write an expression for the next term?
Click here to see answer by jim_thompson5910(35256)

Question 318351: If x and y are two consecutive terms in the Fibonacci sequence, how would I write an expression for the next term?
Click here to see answer by ankor@dixie-net.com(22740)

Question 318658: a number whose product with 6 is the same as its sum with 60?
Click here to see answer by JBarnum(2146)

Question 318807: x + y= -1 4x - 3y=24
Click here to see answer by Fombitz(32388)

Question 319532: how do I solve this,5.93x10to the neg second?
Click here to see answer by stanbon(75887)

Question 320110: Given the following sets, select the statement below that is NOT true.
A = {b, l, a, z, e, r}, B = {b, a, l, e}, C = {a, b, l, e}, D = {l, a, b}, E = {a, b, l}

E ⊆ A
C ⊆ B
D ⊆ C
D ⊂ B
C ⊂ B
Click here to see answer by Fombitz(32388)

Question 320112: A car dealership interviewed every driver who came onto their lot on Tuesday. This produced the following results: there were 31 people who owned trucks and 62 people who owned cars. If 22 people owned both a truck and a car and 9 people owned neither, how many people were interviewed?

Click here to see answer by nyc_function(2741)

Question 320104: Express the following in roster form: Set M is the set of natural numbers between fourteen and nineteen.

Click here to see answer by Fombitz(32388)

Question 320106: Are the two sets equal, equivalent, neither or both? Explain your answer.
V = {cat, dog, bird, flea}; W = {bird, dog, cat, mouse}
Click here to see answer by Fombitz(32388)

Question 320231: -x/6 = 2/9

Click here to see answer by rfer(16322)

Question 320277: What is the fifth term of the sequence whose first term is a1 = 8 and whose nth term is an = 3an-1 + 7?
Click here to see answer by stanbon(75887)

Question 320519: arrange in order from smallest to largest 0.17, 3/20, 1/8, 0.159
Click here to see answer by rfer(16322)

Question 320727: (1/1*2)+(1/2*3)+(1/3*4)+.........find the sum of n terms of the given series?
Click here to see answer by Fombitz(32388)

Question 320941: 11. In a survey of 180 dancers, 105 knew how to do hip hop, 68 knew how to jitterbug, and 62 knew how to lindy hop. Of these, 42 knew how to do hip hop and jitterbug, 24 knew how to jitterbug and lindy hop, and 17 knew how to do hip hop and lindy hop. Fourteen dancers knew how to do all three dances.

Create a Venn diagram to reflect the above data, label your diagram clearly and use your diagram to answer the following questions here.

(a) How many only knew how to lindy hop?
(b) How many only knew how to jitterbug?
(c) How many knew how to do exactly one of the three dances?
(d) How many knew how to jitterbug and lindy hop, but not how to do hip hop?
(e) How many knew none of these dances?
Click here to see answer by stanbon(75887)

Question 319907: Given these sets:
A = {1, 2, 3, 4}
B = {3, 4, 5, 6, 7}
C = {3, 5, 7, 9}

List the elements of this set
B(A∩C)
Click here to see answer by Fombitz(32388)

Question 321778: What is the 100th term of the arithmetic sequence
-3,-7,-11,-15
Click here to see answer by stanbon(75887)

Question 322314: Find the sum of 1+2+3+4+5+�+24+25
Click here to see answer by mananth(16946)

Question 322462: What is the sequence of 0,3,5,9,12,7
Click here to see answer by Edwin McCravy(20056)

Question 322742: 1/9 - 1/y� (y squared)
______________________(divided by)
1/3 + 1/y
Click here to see answer by Fombitz(32388)

Question 322756: what two numbers whose product is -56 but whose sum is 10
Click here to see answer by Fombitz(32388)

Question 323108: Find the sum to n terms of the G.P. 1+12+104+1006+....
Click here to see answer by Jk22(389)

Question 323764: Please help me solve this: A certain arithmetic sequence has
and . Find , , , and
Click here to see answer by Edwin McCravy(20056)

Question 323970: Determine whether f(x)= -5x^2 - 10x + 6 has a maximum of minimum value and find that value.
Click here to see answer by Fombitz(32388)

Question 323980: The square of an odd integer added with the sequencial odd integer eguals 85. What are the two integers?
Click here to see answer by Alan3354(69443)

Question 324238: First time with college algebra, what is formula to help me remember
about sequences of numbers.
Click here to see answer by Edwin McCravy(20056)

Question 324200: Please help me solve this: In a geometric sequence, a5= -25/4 and a2= 2/5. Find an.
Click here to see answer by Fombitz(32388)

Question 324829: What is next in this sequence and how do I solve probems like this, is there a formula?
1 5 14 30 55 91 140
Click here to see answer by scott8148(6628)

Question 324829: What is next in this sequence and how do I solve probems like this, is there a formula?
1 5 14 30 55 91 140
Click here to see answer by rfer(16322)

Question 324829: What is next in this sequence and how do I solve probems like this, is there a formula?
1 5 14 30 55 91 140
Click here to see answer by checkley77(12844)

Question 325034: sigma the top is 5 the middle is (n^2+3n)
and the bottom is n=2 please help me solve

Click here to see answer by Fombitz(32388)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790