The first term of an arithmetic sequence is a1 = 2, and the third term is a3 = 6. Which of the following could be formula(s) for the sequence? Select all that apply.

A. an = 2n
B. an = 2n + 2
C. an = n + 2
D. ​​an = an − 1 + 2; a1 = 2

Answers

Answer 1

Answer:

A

Step-by-step explanation:

an=2(1)=2

an=2(3)=6


Related Questions

Lilli sent 40 text last week. This week the amount of text she sent decreased by 10%. How many text did she send this week?

Answers

Answer:

36 texts

Step-by-step explanation:

Last week = 40 texts

This week = 40 -10%of 40

= 40-4

=36 texts

Hope this helps you.

What is a and b pls answer ASAP I need it !!! Plsss

Answers

Answer:

The value of a = 5.

the value of b = 6.

Step-by-step explanation:

Given the points on the line

(6, 10)(a, 8)(4, b)(2, 2)

Given that all of the points are on the same line and the line represents a linear function.

Thus, the slope between any two points must be the same.

First, determine the slope between (6, 10) and (2, 2)

(x₁, y₁) = (6, 10)

(x₂, y₂) = (2, 2)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

               =  [2 - 10] / [2 - 6]

               = -8 / -4  

               = 2

Thus, the slope of the line = m = 2

Determine the value 'a'

(x₁, y₁) = (6, 10)

(x₂, y₂) = (a, 8)

Using the slope formula to determine the value of 'a'

Slope =  [y₂ - y₁] /  [x₂ - x₁]

As the slope between two points is 2.

now substitute slope = 2, (x₁, y₁) = (6, 10) and (x₂, y₂) = (a, 8) in the slope formula

Slope =  [y₂ - y₁] /  [x₂ - x₁]

2 = [8 - 10] / [a - 6]

2(a - 6) = 8 - 10

2a - 12 = -2

2a = -2 + 12

2a = 10

divide both sides by 2

a = 5

Therefore, the value of a = 5.

Determine the value 'b'

(x₁, y₁) = (2, 2)

(x₂, y₂) = (4, b)

Using the slope formula to determine the value of 'b'

Slope =  [y₂ - y₁] /  [x₂ - x₁]

As the slope between two points is 2.

now substitute slope = 2, (x₁, y₁) = (2, 2) and (x₂, y₂) = (4, b) in the slope formula

Slope =  [y₂ - y₁] /  [x₂ - x₁]

2 = [b - 2] / [4 - 2]

2(4 - 2) = b - 2

8 - 4 =b - 2

4 = b - 2

b = 6

Therefore, the value of b = 6

CAN YOU HELP ME PLEASE

Answers

Answer:

a. 30 degrees

b. 330 degrees

c. 48π

d. 4π

e. 44π

f. 576π

g. 48π

How do I solve this please?​

Answers

Answer:

399

Step-by-step explanation:

[tex]p(2)=7.3e^{2+2} =399[/tex]

The answer to this question is: 399

There are 18 girls in Mr. Brimley's math class. If 40% of the students are girls, what is the best estimation for the number of boys in the class?

Answers

Answer:

30

Step-by-step explanation:

This is an easy one.

So, we know that 40% of the class is girls. We would need to use the other 60% as 60% of the class is boys and we would need to divide.

18/0.6=30

Therefore your answer is 30.

Hope this helps.

Answer:

20

Step-by-step explanation:

It is 40 percent ( given)

18/2=9

9×5=40 (100%)

Girls- 18( given)

Boys- 40-18=22

Rounded off-20

help please, i will give brainless to who helps me out

Answers

9. Answer:

30

10. Answer:

2

11. Answer:

4

12. Answer:

4

13. Answer:

-1

Tip:

Use photomath, its an app

9. x = 30

10. x = 2

11. x = 4

12. x = 2

13. x = -1

Which expressions are equal to 0 when x = -1? Check all that apply.
4(x + 1)
(4 x + 5)
4(x - 1)
(5 - 4x)
4(x - (-1))
(4 x + 5)
4 (X + (-1))
(4 x + 5)
4 (x + 1)
(5 - 4x)

Answers

Answer:

4(x + 1) and 4(x - (-1))

Step-by-step explanation:

4(-1 + 1) = 4(0) = 0

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

4(-1 - 1) = 4(-2) = -8

(5 - 4(-1)) = 5 + 4 = 9

4(-1 - (-1)) = 4(0) = 0

4 (-1 + (-1)) = 4(-2) = 8

pls help is it A. B. C. D.

Answers

Answer:

C

Step-by-step explanation:

Hope I was able to help!! :)

-(1)=-1

{True or False}

Free 40 right here

Answers

Answer:

True

Step-by-step explanation:

Five friends share 6 snacks equally.
How many fruit snacks will each friend get?

Explain with examples.

Answers

Each friend will get 1 1/5
Since there is 5 friends and 6 snacks each can get one but will have to share 1/5 equally of the last snack.

Answer:

A

Step-by-step explanation:


Given the diagram shown below, state the measurement of 4MKD.
15
K
2)
32
D

Answers

Answer:

MKD = 57

Step-by-step explanation:

15+32

hope it helps you ☺️

How do you solve 13 + 3 - 8x + 6 = 1 - 5x I dont get it

Answers

Answer:

x = 7

Step-by-step explanation:

How to solve your question

Your question is 13 + 3 − 8x + 6 = 1 − 5x

13 +3 - 8x + 6 = 1 - 5x

13 + 3 − 8x + 6 = 1 − 5x

Solve

Add the numbers

13 + 3 − 8x + 6 = 1 − 5x

22 − 8x = 1 − 5x

Rearrange terms

22 − 8x = 1 − 5x

−8x + 22 = 1 − 5x

Subtract  22 from both sides of the equation

−8x + 22 −22 = −5x + 1 − 22

Simplify

Subtract the numbers

−8x = -5x + 1 -22

-8x = -5x -21

Add 5x to both sides of the equation

-8x + 5x = -5x -21 + 5x

Simplify

Combine like terms

-3x = -21

Divide both sides of the equation by the same term

(-3x)/3 = (-21)/3

Simplify

Cancel terms that are in both the numerator and denominator

x = (-21)/(-3)

Divide the numbers

x = 7

Answer: x=7

Step-by-step explanation: :)

Please helppp me outtttt

Answers

Answer:

i believe the answer to your question is aas

Answer:

AAS

Step-by-step explanation:

i dont know (i asked my brother)

Andrew 720 seconds take shower and 420 seconds eating breakfast how many minutes does it take Andrew take a shower and eat breakfast

Answers

Answer:

Total time = 19 minutes.

Step-by-step explanation:

Given the following data;

Time to shower = 720 seconds

Time to eat breakfast = 420 seconds

To find the total time in minutes;

Total time = 720 + 420

Total time = 1140 seconds

We know that 60 seconds equals a minute.

Total time = 1140/60

Total time = 19 minutes.

Therefore, it will take Andrew 19 minutes to take a shower and eat breakfast.

Which of the following expressions is equivalent to x+14−3x−27−11y
?

A
12x−11y−27
B
4x+11y+41
C
12x−38y
D
−2x−11y−13

Answers

Answer:

The answer is D)-2x-11y-13

Step-by-step explanation:

help pls i fell asleep i wanna go back help ;;-;;

Answers

Answer:

another person already got this, but operation

Step-by-step explanation:

Question 1
Find the measure of each angle indicated.

Answers

Answer:

90

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

x + 70 =120       {Exterior angle theorem}

        x = 120 - 70

       x = 50

y = x     {Vertically opposite angles}

y = 50

z + 50 + 40 = 180          {Angle sum property}

 z + 90  = 180

          z = 180 - 90

          z = 90

A circle has a diameter of 6ft. What is the circumference of the circle?​

Answers

6x3.14 = 18.84. That should be the answer

Find the value of x 8.5,9,7.5,6,7,x ;the mean is 8

Answers

Answer:

x= 10

Step-by-step explanation:

Mean is the sum of all values divided their number

(8.5+ 9 + 7.5 + 6 + 7 +x) /  6 = 8

(8.5+ 9 + 7.5 + 6 + 7 +x) = 8*6 = 48

(8.5+ 9 + 7.5 + 6 + 7 +x) =48

(38 +x) = 48

x= 48-38 = 10

90 of 40 proportions

Answers

If you need it as a percentage it is 44.4% repeated.

What is the value of angle 2?
1//2
+
66°

Please helpp

Answers

Answer:

The value of angle 2 is 114 degrees

Step-by-step explanation:

We start with 180 degrees, since it is a Line.

To fine the other degree, subtract 66 from 180, which is 114

Angle 2 is 114 because of the theory of interior alternate angles are congruent. Angle 1 is 66 degrees because of the same reason.

Do you still need help with this?

the distance between the two points rounding to the nearest tenth (if necessary).
(-8,1) and (-4,-5)

Answers

Answer:

7.2

Step-by-step explanation:

6^2+4^2=52

sqr 52 is 7.21110255  so its 7.2

y = kx
x = 4, y = -3

Answers

y= kx

k= y/x

k= -3/4

make the constant K the subject

-12

fill in the equation

How do I find the slope

Answers

Answer:

Slope is -1

Step-by-step explanation:

Use the equation y = mx + b

Find the y-intercept (b) intersecting point on the y-axisGraph it and you'd get 10Choose any x and y points from the table. I'll choose (5,5) Substitute: 5 = 5m + 10Solve for m --> m = -1Your slope is -1

The scatterplot below suggests which of the following types of data relationship?

Answers

Where’s the picture?

Perform the operation.
(−3x^2+9x−9)+(−9x^2+9x+3)
I will give brainleist

Answers

Answer:

nose a qué se refiere con eso

Compare the values 4 times 10^7 is _____ times as much as 4 times 10^3

ILL MARK BRAINLIEST

Answers

Answer:

10,000 times as much

Step-by-step explanation:

Hello
10k
times as much

3)
Solve the inequality for x.
- 4x + 16 > -64
A)
X> 12
B)
X > 20
x < 12
D
x < 20

Answers

Answer:

D: x < 20

Step-by-step explanation:

-4x + 16 > -64

subtract 16 from both sides because you must isolate x.

-4x + 16 - 16 > -64 - 16

-4x > -80

Then divide -4 on both sides... I believe that when you divide a number by a negative number you must flip the sign...

-4x/ -4 < -80/ -4

        x < 20

(negative divided by a negative will result in a POSITIVE.)

Hope this helped... I truly apologize if this is wrong..

Faind the volume of the following Traignular Pyramid. Round to the nearest whole number

Answers

Answer:

V = 317 1/3 cubic units

Step-by-step explanation:

V = 1/3 · Area of Base · Height

V = 1/3 · 1/2(14 x 8) · 17

V = 1/3 · 56 · 17

V = 317 1/3

Ms. Rios mowed
2
7
of her lawn. Her son mowed
1
4
of it. Who mowed most of the lawn? How much of the lawn still needs to be mowed?

Answers

Answer:

Ms Rios mowed more

Step-by-step explanation:

I'm assuming that there's 100% of the lawn so if Ms Rios mowed 27% of the lawn when it was at 100% it would be at 73%

Now if her son mowed 14% and it was still at 100% it would be at 86%

So in the end Ms Rios mowed more of her lawn

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