in a sequence of numbers, a3=3, a4=7, a5=11, a6=15, and a7=19. based on this information, which equation can be used to find the nth term in the sequence, an?​

Answers

Answer 1

Answer:

Step-by-step explanation:

sequence is a1,a2,a3,a4,a5,a6,a7,...

or a1,a2,3,7,11,15,...

d=a4-a3=7-3=4

a3=a1+(3-1)d

3=a1+2d

3=a1+2×4

a1=3-8=-5

an=a1+(n-1)d

an=-5+(n-1)4

an=-5+4n-4

an=-9+4n


Related Questions

Theo earned £15400 last year and spent 6% of his money on making home improvements. Find how much money Theo spent on home improvements last year.
Give your answer to the nearest penny.

Answers

Answer:

15400 ÷ 6/100

Step-by-step explanation:

next step do yourself

I hope it will help you

density of the cube is 9.86 g/cm³ and the volume is 150cm³ work out the mass in kg

Answers

Mass= Density *Volume

9.86 g/cm3 *150 cm3 =1479g

1479 g to kilograms

1479g= x

1000g = 1 kg

x = 1479 g / 1000 x = 1.479 kg.

The average cost for a gallon of gasoline in 2006 was $2.45. In 2007, the average cost of a gallon of gasoline was $3.29. What is the approximate percent of change in the cost of a gallon of gasoline?
A. 25%
B. 35%
C. 75%
D. 135%

Answers

Answer:B

Step-by-step explanation:

2.45(0.35)= 0.8575+2.45= 3.30

B. Because 2.45(0.35)=08575+2.45=3.30

The aquarium opened at 8.00 am . In the first hour 140 people purchased admission tickets . In the second hour 25 % more people purchased admission tickets than the first hour . Each ticket cost 15.25 . What was the total amount of money paid for all the tickets purchased in the first two hours please help

Answers

Answer:

Total income= $4,083.75

Step-by-step explanation:

First, we need to calculate the total number of people that enter the aquarium in the first two hours.

1st hour= 140

2nd hour= 140*1.25= 175

Total number of people= 315

Now, we can determine the total amount of money earned:

Each ticket cost 15.25.

Total income= 315*15.25

Total income= $4,083.75

Mary has a container filled with 20 ounces of cereal. Each day she eats 4.5 ounces
of cereal.
• Write an expression to represent the amount of cereal left after x days.

Answers

Answer:quin hill from ms Henry math class?!?!?!?! Why are you on brainly.....

Step-by-step explanation:3.1

What is 21 X 21 ????
3 3​

Answers

Answer: 441

Step-by-step explanation:

21 x 21 = 441

Answer:

21 times 21 is 441

Step-by-step explanation:

i used a calculator

what is exponential form of b•b•b•c•c​

Answers

Answer:

b^3 + c^2

Step-by-step explanation:

Answer:
b^3 * c^2

Explanation:
Here we see that there are 3 B’s being multiplied against each other. This can be written as b^3, because b^3 also represents b*b*b.
Next, there are two c’s being multiplied against each other. This can be written as c^2, because c^2 also represents c*c.
Now that we have found what the exponents are we can multiple both b^3 and c^2 to get our final answer of:
b^3 * c^2

I hope this helps!!
-Kay :)

9(3+v)
answer pleaseee

Answers

Answer:

27+9v

Step-by-step explanation:

distribute



It’s distributing. You multiply 9 with 3 and v. And the answer will be :


= 27+9v

Mrs Jenkins buys a car for £3400.
She sells it for £3800.
Work out her percentage profit.

Answers

Answer:

%11.76

Step-by-step explanation:

400/3400x100 = 11.76

Please help!



Select ALL of the expressions that are equivalent to
3.5 – (4.7).
3.5+ (-4.7)
4.7 – (3.5)
-4.7 + 3.5
3.5 +4.7
3.5 - (-4.7)


Answers

Answer:

Step-by-step 16

16 x 81

Order -5,-7,0, and 4 from least to greatest

Answers

Answer:

-7,-5,0 and 4 is from the least to the greatest.

Answer:

-5,-7,0,4

Step-by-step explanation:

-5

-7

0

4

What is the answer to (a²)(a⁵)(a⁷)

Answers

Answer:

The answer would be a^70

Step-by-step explanation:

Hope this helped!! If it is wrong please tell me and I will re-check my answer. :)

Since there are parenthesis you just multiply the exponents and get A^70

Hope this helps

Two figures have a similarity ratio of 5:8. If the volume of the smaller figure is 875 mm, what is the
volume of the larger figure in cubic millimeters? Solve and explain the process you used to solve the
problem

Answers

Answer:

Step-by-step explanation:

What is the surface area of the cone in terms of r?
15 m
8 m
I m2

PLEASE HELP MEEE

Answers

Answer:

I need help too

Step-by-step explanation:

Multiply (x – 3)(x + 5)

Answers

Answer:

x^2+2x-15 hope it helps

x^2-2x+15

I believe hope this helped !!

Julie has 5 yards of fabric to make doll outfits. Each outfit requires 3/4 yards of fabric. What is the maximum number of outfits Julie can make with her fabric?

Answers

Answer:

6

Step-by-step explanation:

well 5 divided by 3/4 is 6.66666666667 which you can say is 6

answer this question​

Answers

It’s facing the left to its negative and if you count rise over run then the slope is -3 so

Correct answer is the last option
The answer is the last choice

Help I need this now

Answers

Answer:

There is no question showing up so I dont know how to help u

Step-by-step explanation:

PLEASE HELP!!
if y(x) = 5x-2 and g(x) = 2x + 1, find (f + g)(x).

Answers

Answer:

(f + g)(x) = 7x - 1

Step-by-step explanation:

Given :  f(x) = 5x – 2 and g(x) = 2x + 1

We have to find  (f + g)(x)

Consider  (f + g)(x) = f(x) + g(x)

Also, given  f(x) = 5x – 2 and g(x) = 2x + 1

Substitute, we have,

f(x) + g(x) = 5x - 2 + 2x + 1

LIKE TERMS are terms having same variable with same degree.

Simplify by adding like terms,  we have,

f(x) + g(x) = 5x + 2x - 2  + 1

f(x) + g(x) = 7x  - 1

Thus, (f + g)(x) = 7x - 1

A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS a classical CD?

Answers

Answer:

6/42 = 1/7

Step-by-step explanation:

Divide the number of events by the number of possible outcomes.

the volume of a recta

Answers

There is no graph to find the volume

solve using a2 + b2 = c2
show the work please :)

Answers

Answer: 19.20937

Step-by-step explanation:

a2=15

b2=12

c2=?

a2+b2=c2

15(15)+12(12)= c2

225+ 144=c2

√369= √c2

≐19.20937 ft

3√41

Four friends shopped at the Sale Depot for movies. Robby went on Monday and bought three movies for $15.36. Paula went on Wednesday and bought five movies for $27.40. Trey went on Thursday and bought four movies for $20.08. Madison went on Friday and bought six movies for $31.44.

Answers

Answer: See explanation

Step-by-step explanation:

You didn't say what you want to get but I'm guessing that you want to know who had the cheapest deal or the best deal.

Robby went on Monday and bought three movies for $15.36. The cost per movie will be:

= $15.36/3

= $5.12

Paula went on Wednesday and bought five movies for $27.40. The cost per movie will be:

= $27.40/5

= $5.48

Trey went on Thursday and bought four movies for $20.08. The cost per movie will be:

= $20.08/4

= $5.02

Madison went on Friday and bought six movies for $31.44. The cost per movie will be:

= $31.44/6

= $5.24

We can see that Trey had the best deal.

What is the answer?
Is it A B C or D

Answers

Answer:

D

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

square the 3 and times 4 and 2

A whole pizza is cut into 8 pieces and you eat 2 of the 1/8 pieces, how much (in a fraction) is left over? 3/8


4/6


2/8


6/8

Answers

Answer:

6/8 is left

Step-by-step explanation:

Hope this helps!! Can I get brainliest please??? :)

8 pieces = 8/8

8/8 - 1/8 - 1/8 = 6/8

         or

8/8 - 2/8 = 6/8

If Brian took the same test and received a score of 80 % how many questions did he get right? ( hint the test is out of 20 points )

Answers

Answer:

16

Explanation:

First you convert  

80

%

into a decimal which is  

.80

then you multiply it by  

20

.

.80

×

20

=

16

We multiply it by  

20

because that's our total and by  

.80

because that's the amount that we got correct. Had it been  

100

%

then that would mean we got every question right.

Step-by-step explanation:

The answer is 16. If the test is 20 questions, each question is 5 points. (100/20)

help i need help i really really need help no cap

Answers

5.83, 0.5, 0.085
your welcome
5.83, 0.5, 0.085 that’s the answer :)

The rectangle is 16 inches by 25 inches. If the scale is 4 in :5 ft what is the length and width of the rectangle in feet.

Answers

Answer:

The length and width of the rectangle are 20 feet and 31.25 feet, respectively.

Step-by-step explanation:

Let the scale be [tex]4\,in\,:\,5\,ft[/tex] and the dimensions of the rectangle being 4 inches and 5 inches, respectively. The scale ([tex]r[/tex]), measured in inches per feet, is equivalent to the following rational number:

[tex]r = \frac{4\,in}{5\,ft}[/tex]

We can convert each length by dividing it by scale factor. That is:

Length

[tex]l' = \frac{16\,in}{\frac{4\,in}{5\,ft} }[/tex]

[tex]l' = 20\,ft[/tex]

Width

[tex]w' = \frac{25\,in}{\frac{4\,in}{5\,ft} }[/tex]

[tex]w' = 31.25\,ft[/tex]

The length and width of the rectangle are 20 feet and 31.25 feet, respectively.

find the area of the circle with a cirumfererference of 30pi write your solution in terms of pi

Answers

Answer:

225 pi

Step-by-step explanation:

2pi r=30pi

pi r =15pi

pi r2=225pi

225 pi

Is 2/8 equivalent to 1/4

Answers

yes it is 2/8 is a non simplified version of 1/4
Yes 2/8 is equivalent to 1/4

Explanation: 2/8 ÷ 2=1/4
Other Questions
Use the distributive property to rewrite the expressions. 1. 4(3x-5) 2. a(11+2b) The popsicle you are eating starts melting. Which of the following is correct regarding the situation? The popsicle loses thermal energy and the particles speed up. The popsicle gains thermal energy and the particles speed up. The popsicle loses thermal energy and the particles slow down. The popsicle is at thermal equilibrium therefore the heat transfer is equal. what is 1/9+3/5= what is the fraction the diameter of a circle is 7 m. find its area and perimeter.Answer fast!!!!! I need a creative writing not more than 500 wordsIt can be a story , poem etcIt should have strong vocabulary What was the primary benefit of Robert Fultons Clermont steamboat invention?Group of answer choices. Travel time between New York City and Los Angeles was cut in half with the invention.Travel on canals became easier as canals were originally built to accommodate steamboatsSlaves could now be transported quicker and easier for auction in the South.Travel time decreased as the steamboat could now travel against the current. Your grandmother has given you a gift of $1500 for your birthday. You are thinking about your future andconsidering two different options on how to manage your money. Option A: You take all of your $1500 anddeposit it into a savings account that has a 5% interest rate per year. Option B: You spend $500 on a newApple Watch and deposit the remaining $1000 in a savings account that has a 5.5% interest rate per year..Which account would have the most in 10 years? 20 years? Mathematically, explain your reasoning.Which option would you choose and why?. Which expression is equivalent to 3(x - 2)+2x?-X3x5x - 25x -6 Pls help me out. :).. How many electrons does potassium have in its outside electron shell? Need Help Due TomorrowMUST SHOW WORK!dont bother answering if not going to show work factor: p26q(p26)2 Discuss how algae help support other life on earth? Which of the following expressions would give you the greatest quotient (answer to the division problem)? Explain when single-stranded or multistranded wire should be used. Help I need this answer before the day is over how does tannin leave the cell Briefly describe the factors and characteristics that influence conflict resolution. please help me out and ill give brainliest 8(g+4)+5ganswer thisplease-