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4 years ago

Find the next four terms of the arithmetic sequence 11,15,19...

1 answer:

6 0

Each new term of this arith. seq. is obtained by adding 4 to the previous term. Hence, 15 = 11+4; 19=15+4, and so on. Add 4 to 19 to get the next term. Keep going until you have 4 new terms for the arith. seq. 11, 15, 19, .....

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Help me please top brainilest

Tatiana [17]

i think it would be your first choice

5 0

4 years ago

Read 2 more answers

Estimate the question<br><br> 19.9×5.8≈

ankoles [38]

Hello :D

To work this out you need to round the numbers to a whole number.

19.9 = 20

5.8 = 6

20 x 6 ≈ 120

I hope this helps :)

8 0

3 years ago

Read 2 more answers

What is the factors of 2x + 4

ra1l [238]

Answer:

2(x+2)

Step-by-step explanation:

1) 2 : the greatest common factor

2) 2x+4

2x+4=2 ⋅ 2 : Separate out 2

Hope that helps

3 0

3 years ago

Find the sum of the first 6 terms of the sequence: –3, 1, 5, 9, . . .A) 45B) 42C) 48D) 25

Leni [432]

SOLUTION

From the sequence give

–3, 1, 5, 9, . . .

The first term, a = -3

The common difference, d = 4 (gotten by adding 4 to the next term).

The number of terms required n = 6.

Formula for sum of an arithmetic sequence is given by

$S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack$

Substituting these values into the equation above we have

$\begin{gathered} S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack \\ S_6=\frac{6}{2}\lbrack2\times-3+(6-1)4\rbrack \\ S_6=3\lbrack-6+(5)4\rbrack \\ S_6=3\lbrack-6+20\rbrack \\ S_6=3\lbrack14\rbrack \\ S_6=42 \end{gathered}$

Hence, the answer is 42, option B

3 0

1 year ago

What is the answer to 2h/15=20?

GarryVolchara [31]

2h/15=20 so the answer to h would be h=150

7 0

3 years ago