3 years ago

If the nth term of the sequence -1 , 4, 9, 14..... Is 129. Then find the value of n.

Mathematics

2 answers:

Leya [2.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

129-(-1) = 130

130/5 = 26

26+1 = 27

Elodia [21]3 years ago

8 0

Answer:

n = 27

Step-by-step explanation:

This is Arithmetic sequence

a = -1

Common difference = 4 - (-1) = 4 +1 = 5

an = a + (n-1)d

129 = -1 + (n-1)*5

129 + 1 = (n-1)*5

130 = (n-1)*5

130/5 = n - 1

26 = n - 1

n = 26 + 1

n =27

You might be interested in

One more... and ill be out of yalls hair.

Zarrin [17]

Awnser:69
I had this question a few minutes ago, that’s funny

7 0

3 years ago

Will mark brainliest to best answer!!<br><br> geometry question

jeka94

Divide the number & Multiply

4 0

3 years ago

The head of a nail is circular, as shown. The head of this nail has a diameter of 6 millimeters.

Tcecarenko [31]

Answer:

its A

Step-by-step explanation:

Hope it helps

6 0

3 years ago

Fish Tales P.O.W.

mars1129 [50]

25 because it said the head of the fish in 10 the fishes tail is the same 10 plus half witch is 5 so if u add it you get 25

7 0

3 years ago

A biased coin is tossed 40 times. Out of those 40 tosses, the coin landed on heads 12 times.

Ierofanga [76]

Answer:

Step-by-step explanation:The probability of picking the biased coin: P(biased coin)=1/100. The probability of all three tosses is heads: P(three heads)=1×1+99×18100. The probability of three heads given the biased coin is trivial: P(three heads|biased coin)=1.

7 0

3 years ago

If the nth term of the sequence -1 , 4, 9, 14..... Is 129. Then find the value of n. ​

If the nth term of the sequence -1 , 4, 9, 14..... Is 129. Then find the value of n.