Answered

Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Our Q&A platform offers a seamless experience for finding reliable answers from experts in various disciplines. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

7,15,23,31 find the 78th term

Sagot :

fieryanswererft

Answer:

623 is the answer

Step-by-step explanation:

equation : 8X-1

8(1)-1 = 7

8(2)-1 = 15

8(3)-1 = 23

8(4)-1 = 31

8(78)-1 = 623

TheUnknownScientist

Answer:

The 78th term is 623

Step-by-step explanation:

Given:

a₁ = 7; a₂ = 15; a₃ = 23 and so on.

n = 78

To Find:

a₇₈ = ?

Now, Common Difference d

d = a₂ - a₁ = 15 - 7 = 8

d = a₃ - a₂ = 23 - 15 = 8

Here, The Common Difference is same everywhere.

So,

aₙ = a + (n - 1) d

a₇₈ = 7 + (78 - 1) × 8

a₇₈ = 7 + (77) × 8

a₇₈ = 7 + 616

a₇₈ = 623

Thus, The 78th term is 623

 

-TheUnknownScientist 72

Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.