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Divide the sequence by 5 and the answer becomes very obvious:

1, 4, 9, 16,...N2

So, 5, 20, 45, 80,...5N2

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โˆ™ 2010-11-23 21:10:49
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โˆ™ 2020-09-19 19:14:46

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Q: What is the Nth term for the sequence 5 20 45 80?
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What is the nth term of the quadratic sequence 5 20 45 80 125?

{5, 20, 45, 80, 125} = 5{1, 4, 9, 16, 25} = 5{1², 2², 3², 4², 5²} → U{n} = 5n²


How do you find the nth term?

Say if you had the pattern 15 20 25 30 35 40 45 50 To find the nth term you have to see what the gap between the numbers is. In our case this is 5. Then you have to find out what the difference between the gap and the first number. In this sequence it is 10. So your answer would be..... 5n+10 That's how you find the nth term.


What is the formula for the nth Term of these sequences 13 21 29 37 45 ...?

nth term = 5 +8n


What is the nth term of the sequence 10 13 18 25 34?

The next term is 45 because the numbers are increasing by increments of 3 5 7 9 and then 11


What is the nth term for the sequence 13 25 45 73 109?

There are infinitely many possible solutions to such a question. The simplest quadratic is Un = 4n2 + 9


What is the nth term of the sequence 15 25 35 45 55?

15(1)


What is the nth term of 1 6 11 16 and 21?

5n+1


What is the nth term of 3 11 25 and 45?

3n^2 - n + 1


What is the nth term for 25 22 19 16?

t(n) = 28-3n where n = 1,2,3,...


What is 45 over 100 as lowest term?

9/20


What is the answer if you have to reduce 20 over 45 to its lowest term?

4/9


What is 45 percent as a fraction in its lowest term?

9/20 or 0.45


What is the lowest term for 45 over 100?

9 over 20.


What is the nth term for 10 13 18 25 34 45?

tn = n2 + 9, n = 1,2,3,...


What is 20 plus 25?

The answer is 20+25=45


How do you write 0.45 as an lowest term in fractions?

45/100 = 9/20


What is the nth term of 6 15 28 45 66?

6 = 2 * 3 15 = 3 * 5 28 = 4 * 7 45 = 5 * 9 66 = 6 * 11 Assuming the pattern continues, the nth term is (n + 1) * (2n +1) = 2n^2 + 3n + 1.


How do you make 0.45 into a fraction?

0.45 into a fraction = 45/100 or 9/20 0.45 * 100/100 = 45/100 or 9/20 in fraction in lowest term


What is 20 percent off 45.00 dollors?

20% off $45 20% equates to 20/100 so 20% of 45 = 45 x 20/100 = 9. 20% of $45 = 9 Therefore 20% off $45 = 45 - 9 = $36


What is the fraction 20 over 45 reduced to its lowest term?

Both 20 & 45 are divisible by 5.Therefore we can simplify this to 4/9.


What are the first 4 terms of an arithmetic sequence if the ninth term is 90 and the sixteenth term is 153?

So if we call the first term of the sequence A,and the common difference d, then the formula for the nth term is A+ [(n-1)d] this just comes from understanding that the first term is A the second term is A+d the third is A+2d the 4th is A+ 3d so the nth term is A + (n-1)d. So let's set up two equations and solve them for A and d and then we are done A+ 8d=90 A+15d=153 This is the same as -A-8d=-90 A+15d=153 and we add these two equation to eliminate A. This is called elimination. You can also solve this system of 2 equations in 2 unknowns with substitution by substituting A=90-8d into the second equation. I think this is harder We have 7d=63 so d=9 and then plug that into either equation and A=18 So the first 4 terms are 18, 18+9, 18+18, 18+27 or we write 18, 27, 36, 45


What is 45 multiplied by 20?

45 * 20 = 900


What is 45 plus 20?

45 + 20 = 65


What is 45-20 percent?

20% of 45 = 9 = 20% * 45 = 20%/100% * 45 = 90/10 or 9


What is the answer of 45 percent of 20?

45% of 20 = 45% * 20 = 0.45 * 20 = 9

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