Tutors Answer Your Questions about Sequences-and-series (FREE)
Question 462233: A tuition scale for a state university shows an increase of $1,300 each year.
If the initial cost was $21,000, what will the cost of tuition be in twenty three years?
Please explain how an arithmetic sequence was applied.
Thank you!
Click here to see answer by math-vortex(648)   |
Question 464847: The length of a rectangle is 2 inches less than 3 times the number of inches in its width. If the perimeter of the rectangle is 28 inches, what is the width and length of the rectangle?
{Width in., Length in.}
Click here to see answer by sofiyac(983)  |
Question 467166: I have to do two problems dealing with arithmetic and geometric sequence. I am taking MAT126 online and never took trig before. I have an assignment that is due and I need your help.
1. [an=a1+(n-1)=d the answer is 1800 but how do I show my work?
2. a1=1/2r=6 and n=5 the answer is $814.45 but how can I show my work, and know how I got these answers?
Click here to see answer by stanbon(75887) |
Question 471136: Prove that in an arithmetis sequence of natural numbers, one of the terms is aperfect square , then there are many terms which are perfect squares. Is there an arithmetic sequence of natural numbers in which no term is a perfect square?
Click here to see answer by Edwin McCravy(20056)  |
Question 471128: Prove that if inarith metic sequence of natural numbers one of the term is a perfect squqre then there are many term which are perfect squares .is there an arithmetic sequance of natural numbers in which no term is perfect square
Click here to see answer by Edwin McCravy(20056) |
Question 472552: What is formula for the nth term of the infinite sequence? For these you cannot use a recursion formula. 1, 1/4, 1/9, 1/16, 1/25
A) an = 1/3n-2
B) an = (1/2)n-1
C) an = 1/n^2
D) an = 1/n^n-1
I tried to work it out and i came up with C but i really feel like I messed up. Can someone please try to explain this to me for future reference?
Click here to see answer by scott8148(6628)  |
Question 472701: The sum of three numbers in arithmetic sequence is 24 . If the first number is decreased by 1 , and the second is decreased by 2 , the three numbers will now be in geometric sequence. Use algebra to SOLVE for the three numbers (no guessing and testing).
Click here to see answer by richard1234(7193)  |
Question 472702: C. Logs are stacked so that each layer above the bottom layer is one less log than the previous (lower) layer. If the top layer has five logs, and there are 2840 logs in the entire stack, how many logs are in the bottom layer? Work must be done by algebra, not arithmetic/trial and error/guessing.
Click here to see answer by richard1234(7193) |
Question 472706: How do I write an equation for a simple number sequence - 1,2,3,4,etc. where each time they get added together. Example would be 1 = 1 total, 2 = 3 total, 3 = 6 total, 4 = 10 total. I want to be able to get the total of any number. Example would be 50 = 1,275
Please help thank you!
Click here to see answer by richard1234(7193) |
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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
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