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

Name the 5 Steps to solving equations and inequalities.

Answers

Answer:

Step 1 : First, solve one linear equation for y in terms of x .

Step 2 : Then substitute that expression for y in the other linear equation. ...

Step 3 : Solve this, and you have the x -coordinate of the intersection.

Step 4 : Then plug in x to either equation to find the corresponding y -coordinate.

Step-by-step explanation:

I need help please..​

Answers

Answer:

y=-1/2x+1

Step-by-step explanation:

the slope is -1/2 and y intercept is 1 so we plug it in to y=mx+b

Is this answer right?

Answers

Answer:

yes

Step-by-step explanation:

Answer:

Your answer is correct! Good Job :)

Step-by-step explanation:

(х + 5) + (х – 2)
3
7
оооо
2х + 3
2x +7
What’s the correct answer?

Answers

Answer:

the correct answer is 2x+3

Step-by-step explanation:

because your adding the (x) factors together then your adding a negitive to a positive so you would get a lower number

How to find maxima and minima without derivatives.

Answers

Answer:

Finding out the relative maxima and minima for a function can be done by observing the graph of that function

Kirk has already prepared 16.27 kilograms of dough and will continue preparing 5.88 kilograms of dough every hour. How many hours did Kirk work if he prepared 80.95 kilograms of dough

Answers

Answer:

11 hours

Step-by-step explanation:

First, you need to subtract 16.27 from 80.95 to get how many kilograms of dough he had prepared in that amount of time. 80.95-16.27=64.68. Then you would divide 64.68 by 5.88 to find the total amount of hours he worked. 64.68/5.88=11 hours of work.

Solve the slope for the table.

Answers

Answer:

Slope = -3

Step-by-step explanation:

8-17/0+3=-9/3=-3 : Slope Formula

En la figura, BE y AD son segmentos, AB = 4 y AC = 3. Se puede determinar el perímetro del triángulo
CDE si:

Answers

Answer:

AD=7,BE=6,AB=4,AC=3.

Given trapezoid​ WXYZ, what is​ XY?

Answers

Answer:

XY = 16 ft

Step-by-step explanation:

The mid segment DE is half the sum of the parallel bases, that is

[tex]\frac{XY+WZ}{2}[/tex] = 20 ( multiply both sides by 2 to clear the fraction )

XY + WZ = 40

XY + [tex]\frac{3}{2}[/tex] XY = 40 ( multiply through by 2 to clear the fraction )

2XY + 3XY = 80

5XY = 80 ( divide both sides by 5 )

XY = 16

The amount of sales of single scoop ice-cream cones during the summer s(c0 varies directly with the number of customers c. Ten customers bought a total of $44 worth of ice-cream cones. Which equation can be used to find the ice-cream sales for c customers?

Answers

Answer:

s(c)= 4.4c

Step-by-step explanation:

Hurry I will give brainlyest!!!!

What are the factors of this expression?

34xy



Drag all of the factors of the expression into the box.

Factors

3/4 -1 3 4 x y

Answers

34, x, y are factors of this expression.

- BRAINLIEST answerer

pls someone help me with this ixl question

Answers

Hi!

(5+d)+(-8)=(5+d)-8

Hence, this is the required solution.

~SparklingFlower :)

(5+d)-8= 5+d-8= d-3


1. 5-8= -3

lucio es un poco bromista al llegar a la tortearía dijo: me da dos tercios de torta y media el dependiente que si sabia matemáticas lo despacho correctamente

*Que cantidad de torta le dio?
*como resolviste el problema?

Answers

Answer:

Step-by-step explanation:

In the given case, we can conclude The customer received one and one-sixth (1 1/6) of a cake.

The question is asking us to determine how much cake the customer received. The phrase 'dos tercios' translates to 'two-thirds' in English. So, the customer received two-thirds of a cake.

Since the customer also received half of a cake, we can add these two quantities together: two-thirds + one-half.

In order to add these fractions, we need a common denominator. The least common multiple of 2 and 3 is 6. So, we can rewrite two-thirds as four-sixths and one-half as three-sixths. Adding these fractions together gives us seven-sixths (or one and one-sixth).

Therefore, the customer received one and one-sixth (1 1/6) of a cake.

Learn more about the topic of Addition of fractions here:

https://brainly.com/question/14427715

#SPJ3

Solve the equation.
-3x + 1 + 10x = x + 4
Ох:
x=
No
x=
x =
x = 12
x = 18

Answers

Answer:

x=1/2

Step-by-step explanation:

Please help me





20 points

Answers

Answer:

1). Simplify the expression.

Exact Form:

( [tex]\frac{37}{25}[/tex] )

Decimal Form:

1.48

Mixed Number Form:

( [tex]1\frac{12}{25}[/tex] )

2). Simplify the expression.

91.46

3). Simplify the expression.

Exact Form:

[tex]\frac{17}{24}[/tex]

Decimal Form:

0.7083  ( bar notation)

4). Simplify the expression.

81.49

can anyone help me ?
Find the missing angle measure.

Answers

Answer:

x° = 99°

Step-by-step explanation:

The polygon is a hexagon and the sum of its internal angles is:

[tex]180(n-2)=180(6-2)=180(4)=720^{0}[/tex]

subtract the 5 known angles:

[tex]x^{0} =720-145-164-59-132-121=99^{0}[/tex]

Hope this helps

will give brainliest

Answers

Answer:

Steeper: y=-3/2x+1/2 AND y=-2x+7/3 AND y=-7/4x+3/2

Less Steep: y=-4/3x+2/3 AND y=-8/7x+4/7

Step-by-step explanation:

Hope this helps :)

The elves have $120 to spend on boxes of candy canes and boxes of ornaments. Each box of candy canes costs $3.00
and each box of ornaments costs $12.00. Let x represent the boxes of candy canes and y represent the boxes of
ornaments. Write an equation that describes the number of boxes of candy canes and ornaments that the elves can
buy.

Answers

Answer:

[tex]3x + 12y = 120[/tex]

If this problem needs solved like the other one I answered with the reserved seats and general admission, it is done the exact same way as that one.

The final amount of 893 decreased by 19% followed by a 17% decrease

Answers

Answer:

the answer is 600.36_____

What is the solution set of (x - 2)(x - 3) = 2?.

Answers

The solution set is X=1 and x=4

pls help! NO LINKS I WILL REPORT YOU

Answers

I agree c, also sorry if that’s wrong

pleaseeeeeeeeee helppppppppp meeeeeeeeeee

Answers

Answers:

FunctionNot a functionFunctionNot a function

========================================

Explanation:

If x repeats itself, then we don't have a function. For instance, relation 2 has the x value -4 show up twice. That input leads to multiple outputs which is why we don't have a function. Relation 4 is a similar story (this time the input 'u' shows up twice).

Relations 1 and 3 don't have this issue, so they are functions.

1/243 as an expression using a negative exponent other than -1​

Answers

Answer: To get the expression with negative exponent, we need to convert the number 1024 in exponential form

Replace the denominator by 2^10

Now we apply exponential property

negative exponent other than -1 is

The sales tax rate is 10% if ruby buys a toaster priced at 34.72 what will be the total cost including tax

Answers

Before tax price - $34.72
After tax price - $38.19

y/−7 = 1 /4 what does y =

Answers

Answer:

y = - [tex]\frac{7}{4}[/tex]

Step-by-step explanation:

[tex]\frac{y}{-7}[/tex] = [tex]\frac{1}{4}[/tex] ( cross- multiply )

4y = - 7 ( divide both sides by 4 )

y = - [tex]\frac{7}{4}[/tex]

My friends the answer is -7/4 Explanation:y/(-7) = 1/4 // - 1/4    y/(-7)-(1/4) = 0 y/(-7)-1/4 = 0 -1/7*y-1/4 = 0 // + 1/4 -1/7*y = 1/4 // : -1/7 y = 1/4/(-1/7) y = -7/4

4 - (2x + 4) = 5
х=-10
x=-5/2
x=3/2
x=6

Answers

Answer:

x= - 5/2

Step-by-step explanation:

Answer:

x = -5/2

Step-by-step explanation:

4 - (2(-5/2) + 4) = 5

4 - (-5 + 4) = 5

4 - (-1) = 5

4 + 1 = 5

Domain and rangeeeeeee

Answers

Answer:

domain: -4 ≤ x ≤ 2

range: 2 ≤ y ≤ 6

Step-by-step explanation:

six times a number is 21 less than nine times the same number find the number​

Answers

Answer:

x = 7

Step-by-step explanation:

Algebra to Equation:

"six times a number is 21 less" = 6x + 21

"nine times the same number" = 9x

Equation: 6x + 21 = 9x

Solve:

6x + 21 = 9x       [tex]\longmapsto[/tex]       Subtract 6x from both sides

21 = 3x               [tex]\longmapsto[/tex]       Divide both sides by 3

7 = x

x = 7

-Chetan K

The answer is 7.
Hope this helped!

Which of the following could be a value for a bearing, written in the correct
format?
07°
0007°
007°


Answers

Answer:007

Step-by-step explanation:Bearings are a measure of direction, with North taken as a reference.

If you are travelling North, your bearing is 000°, and this is usually represented as straight up on the page.

If you are travelling in any other direction, your bearing is measure clockwise from North.

X According to a survey, 60 sixth grade students at Madison Middle School attended a summer camp. This is 30% of the entire sixth grade. How many students are in the sixth grade?

Answers

Answer: total is 200

Step-by-step explanation:

30% = 60

10% = 60/3 = 20

100% = 200

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