Write the explicit formula for
-1,-3,-9,-27,-81...

Answers

Answer 1

Answer:

[tex]- \frac{1}{3} * 3^n[/tex]

Step-by-step explanation:

This is a geometric sequence/progression

Therefore, we use the formula [tex]a_{n} = \frac{a_{1} * r^n}{r}[/tex]

Where [tex]a_{1}[/tex] [tex]=[/tex] [tex]-1[/tex],

and [tex]r = 3[/tex]

[tex]a_{n} = \frac{-1 * 3^n}{3}[/tex]

[tex]a_{n} = -\frac{1}{3} * 3^n[/tex]


Related Questions

test again Add.

3/8+3/8

Answers

Answer:

3/4 or 0.75

Step-by-step explanation:

[tex] \frac{3 }{8} + \frac{3}{8} [/tex]

transform the equation

[tex] \frac{3 + 3}{8} [/tex]

calculate

[tex] \frac{6}{8} [/tex]

simplify

[tex] \frac{3}{4} [/tex]

or 0.75

"the product of negative three and x"​

Answers

-3x

That’s pretty much it

Help me out please !!!!

Answers

Answer:

B) 6<x<90

Step-by-step explanation:

48+42=90

48-42=6

There will be a number greater than and a number less than x.

90>6

6<x<90

Hope this helps :)

Kerry scored a total of 205 points last season by making
a total of 120 baskets. Some of the baskets were 1-point
free throws (t), and the rest were 2-point field goals (g).
Which pair of equations models this situation?
A.) t+2g=205
t+g=120
B.)t+g=205
t+2g=120
C.)t+g=205
t+g=120
D.)t+2g=205
t+2g=120

Answers

Answer:

a

Step-by-step explanation:

Answer:

A.) t+2g=205

t+g=120

Step-by-step explanation:

We know that Kerry scored 205 points by making 120 basket.

t+g=120 { Because some of the basket were 1-point free

t+2g= 205 ( Throws (t) and the rest were 2-point field goals (g)


What should a bank statement include

Answers

A bank statement is a list of all transactions for a bank account over a set period, usually monthly. The statement includes deposits, charges, withdrawals, as well as the beginning and ending balance for the period.

The top of a bank statement generally shows the name of the account holder along with sensitive information such as bank account number and branch number. It also contains a summary table that shows the time period, opening balance, deposits, withdrawals, and closing balance.

- BRAINLIEST answerer

guys is there a way to change your age on brainly i pressed the wrong age and now brainly thinks im in high school when im in middle school.
also solve this problem so i can put it under math.
what is 176x 1,789

Answers

Answer:

i dont think so...

Step-by-step explanation:

314864

Answer:

314,864 is the product.

Step-by-step explanation:

176 x 1,789= 314,864

simplify this addition 2m+3m+(-6m)​

Answers

Answer:

-m

Step-by-step explanation:

2m+3m+(-6m)=2m+3m-6m

                      =5m-6m

                      =-m

Answer:

-m

Step-by-step explanation:

2m+3m+(-6m)​

Remove parentheses.

2m+3m-6m

Add and subtract.

-1m or -m

Hope this helps :)

Can someone please help me with this?

Answers

Step-by-step explanation:

4a - 5b = 7

substract 4a from both sides

4a - 5b - 4a = 7 - 4a

positive 4a with negative 4a

5b = 7 - 4a

devide both sides by 5

[tex] \frac{5b}{5} = \frac{7 - 4a}{5} [/tex]

[tex]b = \frac{7 - 4a}{5} [/tex]

parallel perpendicular or neither

Answers

Well I guess it should be perpendicular

How do you find function f for piecewise function.

Answers

Answer:

The f(x) is equal to whatever is on the right side of the piecewise functions, as long as the conditions for x are met.

Step-by-step explanation:

An example has been attached

-- Gage Millar, Algebra 1/2 tutor

CAN SOMEONE HELP ME PLEASE ASAP!

Answers

Answer:

15lb

Step-by-step explanation:

1lb=453.59

You answer 21 out of 25 questions correctly on a test. Did you reach your goal of getting 80% or better?

Answers

Answer:

Yes

Step-by-step explanation:

20 needed to get 80 %. You got one more than that so you got slightly more. So yes you did. You can also make 25 to 100 and 21 x4 so  that gives you 84 % . So you scored %84.

Good job

8 × (4^2 + 2) please help

Answers

Answer:

144

Step-by-step explanation:

Using the process PEMDAS I got 144

8 × (4^2 + 2)

First, you solve inside the parentheses, the exponent is the beginning step.

8 x(16+2)

The next step of this equation is adding, which gives us the sum of 18.

8 x 18

Our last step is multiplication.

144 is our product/answer.

Write an algebraic expression to represent the verbal statement: The product of the difference of m and 7 and 6.

Answers

Answer:

x=(m)(7)(6) or x=m*7*6

Step-by-step explanation:

hiroshi borrowed 3 nonfiction books from the library. This was 25% of the books he checked out. how many books did Hiroshi take out?

Answers

Answer:

12 books

Step-by-step explanation:

25% is the same as 1/4

3=25%=1/4

if you multiply 3 by 4 you get 100% or 12

You can also do this by adding 9, aka 3*3, to 3 to get 3*4=12.

The sizes of the angles in degrees of e triangles are.

2x+7
2x
X+18
Use this information to write down an equation in terms of x

Answers

(2x + 7) + (2x) + (x + 18) = 180

5x + 25 = 180

5x = 155

x = 31 °

a=0.5 b=-6
work out ab-b

Answers

Answer:

a = 0.5

b = 6

ab - b

= 0.5 × 6 - 6

= 3 - 6

= -3

Hope it helps:)

1/2 hours: $1.25 What is the unit rate per hour?

Answers

Answer:

$2.5/hr

Step-by-step explanation:

1/2 hr = 1.25

(1/2 hr)x2 = $1.25 x 2

1 hr = $2.5

I need help quickly

Answers

the answer is 6 (x- 5)= 36

10. The ordered pairs (1, 2), (2, 8), (3, 18), and (4, 32) represent a function. What is a rule that represents this function? Show your work for full credit!

a.2x
b.2x+2
c.x^2
d.2x^2

Answers

Answer:

B 2x+2 I don't know whether is correct or not

BRAINLIEST FOR CORRECT ANSWER NEEDS HELP ASAP
At Chrissy's Clothes Warehouse, it takes fraction 2 over 5 of a day to complete fraction 1 over 10 of an order of t-shirts. At this rate, how long will it take to complete the entire order of t-shirts?
4 days
Mixed number 10 and 2 over 5 days
Mixed numbers 12 and 1 over
2 days
25 days

Answers

Answer: 4 days

Step-by-step explanation:

Which capital letters have one or more lines of symmetry?
A) X
B) Z
C) H
D) C

Answers

Answer:

h has 4 lines x has 2 z has 3 c has none

Step-by-step explanation:

Which equation represents the same line as the points in the table

Answers

Answer: 1st one

Step-by-step explanation:

You hav multiple points there: (-6,0) (0,-2)
Slope formula: y2-y1/x2-x1
-2-0/0-(-6)
Slope: -1/3
Y-0=-1/3(x+6)
ANSWER:
Y=-1/3x-2

WILL GIVE BRAINLEST!!! A rational expression has been simplified below
(x-2)(x+6) X-2
7(x+6)
*=2
For what values of xare the two expressions equal?

Answers

Answer:

You're answer is B. All answers except -6

Step-by-step explanation:

did the test

Which number sentence is true?

Answers

Answer:

B

Step-by-step explanation:

Edge 2021.

D! -3 1/8 is greater than -81/6= -13.5

Gavyn drivers at a speed of 50 miles per hour. How long will it take to drive 225 miles

Answers

Answer:

4.5hours - 4h30 min

Step-by-step explanation:

Doing the math: 225 miles : 50 miles per hour = 4.5 hours

Thinking about it: 50 mph means that it takes 1 hour to do 50 miles. in 2 hour he travels 100. double again, it's 4 hours for 200 miles. Then there's 25 left, so half an hour. 4.5 hours or 4h30min

1\4-2\5
plese help and thank
you

Answers

Answer:

3/20

Step-by-step explanation:

3/20 I sure, Just trying this one

grace read 4 days a this week. She reads 10 minutes each day. if her teacher wants her to read a total of 60 minutes, how many more minutes does grace need to still read?

Answers

Answer: 20 more minutes

Step-by-step explanation:

Grace has already read 40 minutes due to her reading 4 times a week and 10 minutes each time(4x10=40). She has 20 more minutes to read as there as 60 minutes in a hour  

Grace needs 20 minutes more to read.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Grace read 4 days a this week.

In one day she read= 10 minutes

So, in 4 days she read = 4 x 10

                                     = 40 minutes.

So, total time taken = 60 minutes.

Thus, she needs to read (60 - 40) = 20 minutes.

Learn more about unitary method here:

https://brainly.com/question/22056199

#SPJ5

The quotient of eight and the number H is written as?

Answers

Answer:

8/h

Step-by-step explanation:

Quotient means division, so basically you are dividing 8 by h.

Answer:

8/H

Step-by-step explanation:

8/H - Just divide 8 by H

A random sample of 150 adults was given an IQ test. It was found that 78 of them scored higher than 100. Based on this, compute a 99% confidence
interval for the proportion of all adults whose IQ score is greater than 100. Then find the lower limit and upper limit of the 99% confidence interval.

Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.

Answers

Answer:

answer in the link

Step-by-step explanation:

Other Questions
consider the system of equations. which shows an equivalent system of equations?see attatched which ocean is home to the tiny archipelago nation of comoros? John Adams still believed that the term massacre was appropriate. Even though he was the defense attorney, what is his reason for making such a statement? Prevention goals are consistent with: a. utilitarianism. b. ethics of care. c. deontological ethics. d. ethical formalism. evaluate m+n/6 , when m= -3 and n=18 IF ANYONE IS A GENIUS AT MATH PLZ HELP AND ANSWER MY LATEST QUESTION!! I RLLY NEED HELP, IM LITERALLY GONNA CRY!!! IF YOU CAN'T FIND IT, BELOW IS AN IMAGE OF THE MATH SCENARIOS THAT I NEED HELP WITH!!! PLZ EXPLAIN EACH AND EVERY PART. Which sentence most clearly describes the structure of a story?A. Science fiction elements fill a story that's mostly about growingup.B. Long descriptions of the town make it feel like a character in thestory.C. The conflict is resolved quickly and unexpectedly with no risingaction.D. Each character in the story is keeping a dark secret from theothers. it is estimated that there are how many veterans of the armed forces in the u.s. today? What happens if there is too muchglucose and it is not going into thecells?A. It is excreted through the urine.B. It is excreted through sweat.C. It is excreted through the feces. (a) 35.8 + 10 need answer How is a proton gradient formed across the inner mitochondrial membrane? i don't know what this means someone help????? Which of the following statements apply to leukocytes? Select all that apply.Multiple select question.They eject major organelles when mature.They are capable of protein synthesis.They live approximately 120 days.They retain their organelles throughout their life time.They are not uniform in form and function. 2^-3 x 3^-2whats the answer? Plaseee ASAP In an experiment hydrochloric acid is added drop by drop to solid sodium sulfite (Na2SO3). A gas is evolved and collected. Half of the collected gas is added to Lugol solution (I2 dissolved in KI solution), the other half of the gas is added to hydrogen sulfide solution. Write the equation of the reactions, discuss the observations that can be seen during the reactions and explain the changes. In your answer, also discuss the followings:a) What gas is liberated during the reaction between HCl and Na2SO3? Why can it be liberated this way? Write an equation for the reaction.b) What ability of the gas is demonstrated in the reactions with Lugol solution and with H2S? Write equations and use oxidation numbers to prove it. What makes it possible for the substance to act differently in the two reactions?c) What other properties of the gas evolved can you recall?d) What are the environmental implications of the gas evolved? Write the appropriate equation for the reaction. Which of the following statements best goes with the Law of Conservation of Energy Grace wanted to find out the best conditions for growing lettuce plants.She took 4 trays and planted 8 lettuce plants in each. The results of her investigation are shown below. How many days did the investigation last? Use the table to help you. Follow the steps to finish solving the equation -3x +18 = 7x1. Add 3x to both sides to isolate the variable term.2. Divide both sides by 10.x= why is economic prosperity important for country How is modern democracy different from ancient democracy?