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Anvisha [2.4K]
3 years ago
14

Write the explicit formula for the arithmetic sequence. 2, -2, -6, -10, -14, ...

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

2-4(x-1)

Step-by-step explanation:

Begin at 2 then subtract 4 for every (x-1) terms after.

Ex. the 10th term in the sequence is 2 - 4(10-1) = -34

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In the expression<br> 7a + b - 12<br> what is the coefficient of a?
marusya05 [52]

Answer:

6

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Solve for x in the equation x squared + 2 x + 1 = 17.
lbvjy [14]

Answer:

Step-by-step explanation:

x^2 + 2x + 1 = 17

x^2 + 2x = 17 - 1

x^2 + 2x = 16

x^2 + 2x + 1 = 16 + 1

(x + 1)(x + 1) = 17

(x + 1)^2 = 17

x + 1 = sqrt 17

x = -1 (+ - ) sqrt 17

x = -1 + sqrt 17 or x = -1 - sqrt 17 <===

7 0
3 years ago
So I have to finish this and I have no idea How to do it. Please Help.
Zina [86]

Answer:

25 bc I mena I did count the scares but then I took the ones that weren’t fully squares and counted them as a quarter and that’s what I got not sure don’t trust meh bc I just guess this

Step-by-step explanation:

8 0
2 years ago
Can someone help me solve this Please
Dafna1 [17]

9514 1404 393

Answer:

  • 523 grams
  • 52 grams

Step-by-step explanation:

To find the initial amount, put 0 where t is in the formula and do the arithmetic.

  A(0) = 523(1/2)^0 = 523(1) = 523

The initial amount is 523 grams.

__

To find the amount remaining after 100 years, put 100 where t is in the formula and do the arithmetic.

  A(100) = 523(1/2)^(100/30) ≈ 523(0.0992123) ≈ 52

About 52 grams will remain after 100 years.

8 0
2 years ago
Simplity -4/3 ➗2/-6<br> -4<br> -2<br> 2<br> 4<br> I
yulyashka [42]

Answer:

-4

Step-by-step explanation:

-4/3÷2/-6

⇒ -4/3×-6/2

⇒ -24/6

⇒ -4

7 0
2 years ago
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