Ask question

Ask question

All categories

My name is Ann [436]

3 years ago

11

In an arithmetic sequence {an}, if a1 = 5 and d = 3, the first 4 terms in the sequence are

2 answers:

noname [10]3 years ago

6 0

A1 represents the first term

d represents the common difference.....and since the common difference is 3, u have to add 3 to each term to find the next term....because with an arithmetic sequence u add to find the next term, whereas, in a geometric sequence u multiply to find the next term

5...first term
5 + 3 = 8...2nd term
8 + 3 = 11...3rd term
11 + 3 = 14...4th term

ur answer is B

motikmotik3 years ago

5 0

$a_n=a_1+(n-1)d\\\\a_1=5;\ d=3\\\\substitute\\\\a_n=5+(n-1)\cdot3=5+3n-3=3n+2\\\\a_1=3\cdot1+2=5\\a_2=3\cdot2+2=8\\a_3=3\cdot3+2=11\\a_4=3\cdot4+2=14\\a_5=3\cdot5+2=17\\\vdot$

$Answer:\boxed{B)\ \{5;\ 8;\ 11;\ 14;\ 17;\ ... \} }$

You might be interested in

50× 3/8 how to reduce answer to lowest te

hoa [83]

The lowest term is $\frac{75}{4}$ .

Solution:

Given expression is $50\times\frac{3}{8}$

<u>To reduce this term to the lowest term:</u>

$$50\times\frac{3}{8}=\frac{50}{1}\times\frac{3}{8}$

Multiply the numerator and denominator.

$$50\times\frac{3}{8}=\frac{150}{8}$

Now, divide the numerator and denominator by the greatest common factor.

Here 150 and 8 both have common factor 2.

So, divide numerator and denominator by 2.

$$=\frac{150\div2}{8\div2}$

$$=\frac{75}{4}$

$$50\times\frac{3}{8}=\frac{75}{4}$

Hence the lowest term is $\frac{75}{4}$ .

4 0

3 years ago

Draw a number line to<br><br> represent the inequality.<br><br> y s 23

Mkey [24]

Answer:

The number lines are shown below.

Step-by-step explanation:

In the given problem the sign of inequality is missing.

We know, that there are 4 signs of inequality ">", "<", "≥" and "≤".

The possible inequalityes are

$y>23$

$y$

$y\geq 23$

$y\leq 23$

In $y>23$ , all points on the right side of 23 are included in the solution set.

In $y$ , all points on the left side of 23 are included in the solution set.

In $y\geq 23$ , 23 and all points on the right side of 23 are included in the solution set.

In $y\leq 23$ , 23 all points on the left side of 23 are included in the solution set.

4 0

3 years ago

The sum of the exterior angles of a pentagon equals 300? True or false

malfutka [58]

25 and then add the decimals they have to be aaddd by the two decimals

3 0

3 years ago

Find the sum: 35,076 + 6,825 = ______.

Tcecarenko [31]

41,901

that’s the answer

5 0

2 years ago

Read 2 more answers

50 POINTS & BRAINLIEST!!!! HELP ASAP!!!

Allisa [31]

6(2x - 11) + 15 = 21

First step use distributive property on the left side to remove the parenthesis, to do this multiply 6 by each term inside the parenthesis:

12x - 66 + 15 = 21

Second step, simplify the left side by combining the like terms:

12x - 51 = 21

Third step, add 51 to both sides of the equation:

12x = 72

Last step, divide both sides by 12:

x = 72/12

x = 6

3 0

3 years ago