Mathematics College

Select the formula for the
xth term of the sequence.

screen shot -

Select The Formula For The Xth Term Of The Sequence.screen Shot -

Answers

Answer 1

Answer:

Option (3)

Step-by-step explanation:

Given sequence is,

8, -8, 8,...........

Ratio of the 2nd and 1st term = [tex]\frac{-8}{8}[/tex]

                                                = -1

Ratio of 3rd and 2nd term = [tex]\frac{8}{-8}[/tex]

                                           = -1

Therefore, there is a common ratio 'r' = (-1)

And the sequence is a geometric sequence.

Explicit formula for the nth term of a geometric sequence is given by,

[tex]T_n=a(r)^{n-1}[/tex]

Here, 'a' = First term of the sequence

r = Common ratio

n = nth term

For the given sequence xth term of the sequence will be,

[tex]T_x=8(-1)^{x-1}[/tex]

Option (3) will be the answer.

Related Questions

Factorise the expression

Answers

it is not possible

that expression is not factorable with rational numbers

rational means - A number that can be expressed as the ratio of two integers.

write an equivalent expression 8(y-7z+1)

Answers

Answer:

8y−56z+8

Step-by-step explanation:

help help Find the surface area of the figure !

Answers

Answer: 340 in. squared

Step-by-step explanation:

17*7=119

15*7=105

8*7=56

8/2*15=60

119+105+56+60=340 in.^2

What are the restrictions on x? square root of 5x^2

Answers

Step-by-step explanation:

there are actually no restrictions. even with a negative x, squaring it makes for a positive result.

Please help!!! Evaluate sin(x)
A. 2.125
B. 0.4706
C.0.8824
D.0.5333

Answers

Answer:

sin x = 0.4706

Step-by-step explanation:

Given that,

Height, h = 8

Base, b = 15

Let H be the hypotenuse of the triangle. Using Pythagoras theorem,

[tex]H=\sqrt{8^2+15^2} \\\\H=17[/tex]

We know that,

[tex]\sin\theta=\dfrac{h}{H}[/tex]

So,

[tex]\sinx=\dfrac{8}{17}\\\\\sin x=0.4706[/tex]

So, the correct option is (b).

find the expression as the cosine of an angle
cos pi/4 cos pi/9 - sin pi/4 sin pi/9

Answers

Answer: cos(13pi/36)

Step-by-step explanation: just did the assignment

6rr6gryr6ffgrfrf6rfg6rfg6rgfrfgrf6rgfrg6frg6gf6rgrfgrf6gf6rfgr6fgr6fgr6fgr6fgr6gr6gfr6fg6fg6frgr6grf6gr6fr6fg6rgr6g6rgf6rfg6fgr6fg6rgr6fgr6fg

Answers

Step-by-step explanation:

Hello friend nice to meet you....

Answer:

What ever you want it to be

Step-by-step explanation:

nooo

Find the perimeter pt3

Answers

Answer:

28

Step-by-step explanation:

2x3x2x2=28   the permiter is the area around the shape like  lenght witdth and heght

The perimeter is the sum of all sides: K + L + M + N.


Graph y = 3x – 3 using the slope and y-intercept.

Answers

Use the slope-intercept form to find the slope and y-intercept. The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept.

techwiz Electronics makes a profit of $35 for each MP3 players sold and $18 for each DVD player sold. Last week, techwiz so the combined total of 128 MP3 and DVD players let X be the number of MP3 players techwiz sold last week write an expression of the combined total profit in dollars Tech whiz made from MP3 and DVD player ​

Answers

Answer:

128 = 35x + 18y

Step-by-step explanation:

total = 35(MP3) + 18(DVD)

128 = 35x + 18y

-3/8 divided by -1/4 equals

Answers

Answer:

3/2 or 1.5 or 1 1/2

Step-by-step explanation

To divide, you must switch the -1/4 to its reciprocal which is -4/1 and then multiply the fractions (-3/8 * -4/1) and since negative - negative = positive. It's a positive.

How many pairs of opposite sides are parallel? no pairs 1 pair 2 pairs​

Answers

Answer:

no pairs of opposite sides are parallel

Answer:

no pairs

Step-by-step explanation:

none of the sides line up straight with each other

hope this helps! :)

Find the value of x. Round to nearest tenth. A=53sq.in.

Answers

Answer:

50sq.in

hope it helps.


Sophie needs to determine the amount of water that will fit into her new vase, shown below.

Which combination of geometric shapes can she use to best estimate the vase's volume?
A cone and a hemisphere
A cylinder and a sphere
A truncated cone and a sphere
A truncated pyramid and a hemisphere

Answers

Answer:A truncated cone and a sphere

Step-by-step explanation:

I just did it.

The combination of geometric shapes can she use to best estimate the vase's volume is a truncated cone and a sphere.

Sophie needs to determine the amount of water that will fit into her new vase, as shown below.

What is the volume?

Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface.

We have to determine the combination of geometric shapes can she use to best estimate the vase's volume.

Therefore the combination of geometric shapes can she use to best estimate the vase's volume is a truncated cone and a sphere.

To learn more about the volume visit:

https://brainly.com/question/1972490

#SPJ2

You randomly choose one of the chips. Without replacing the first chip, you choose a second chip. Find
the probability of choosing the first chip, then the second chip.
White and not a Green


Answers

Answer:

probability = 0.07777

Step-by-step explanation:

there are 10 chips

white  1

red     4

green 2

blue   3

the probability of choosing the W chip is 1/10  or  0.10      

now there are 9 chips left (the first chip was not replaced)

the probability of choosing a non-green chip is (9-2)/9 =  7/9  = 0.7777  

so now I THINK you multiply the two probabilities to get the total probability

probability = 0.1 ·0.7777

probability = 0.07777    which makes sense it has to be less than 0.1

Answer:

1/15

Step-by-step explanation:

2/10 x 3/9= 6/90

6 divided by 6

90 divided by 6

=1/15

3/4 Ravi is as tall as Sam, Mike is as tall as 5/3 Ravi. Find the ratio of Mike's height to Sam's height.​

Answers

Answer: The ratio of Mike and Sam Heights are  S:M=5:4

Step-by-step explanation:

Ravi is 3/4 as tall as Sam.

Consider the equation is  3/4 *R=S

Mike is 5/3 as tall as Ravi.

Then, the equation is 5/3 *M=R

Solve the two equation to find ratio of mikes and sam height.

3/4*R=S   Eq(1)

Rearranging eq (1) for R

R=4/3 *S      Eq(3)   made from eQ (1)

R=5/3*M   Eq(2)

Comparing   Eq 2 &3  equations

4/3*S=5/3*M

S/M=(5/3)*(3/4)

S/M=5/4

Explain how to find mode, range, and mean

Answers

Step-by-step explanation:

The mean is the usual average, so add all of the numbers and then divide.

The mode is the number that is repeated more often than any other.

The range is the largest value and smallest value subtracted.

Answer:

Answer bellow

Step-by-step explanation:

To find mean(average) get all the numbers and and add them together after devide the added number by the number of numbers

To find mode rewrite all the numbers and look for numbers that are repeating (it can be more than one)

To find range take the biggest number from the data set and subtract it from the smallest number in the data set

What is the volume of the prism? m 14 m 6 m 8 m​

Answers

Answer:

672

Step-by-step explanation:

It is right on Edge 2021

Which equation could be used to find the
total cost cif Fernando wanted to buy
8 pencils from the school store?

Answers

Answer:

A. C=0.15*8

Step-by-step explanation:

3 pencils for $0.45, think about how much one pencil costs? so divide 0.45 by 3 and get 0.15 which basically means 1 pencils is 15 cents, multiply that by the amount of pencils fernando wants which is 8 and that's your equation

Pls help !! Pls no links :)

Answers

Answer:

A 5 <= A <= 40

Step-by-step explanation:

down point is (5, 50)

up point (40, 350)

so  5 <= A <= 40

3. Write the equation of the circle with a center at (-6, 1) and an area of 7n.

A Q(x + 6)^2 + (y - 1)^2 = 14
B (x - 6)^2 + (y + 1)^2 = 49
C (x + 6)^2 + (y - 1)^2 = 49
D (x + 6)^2 + (y - 1)^2 = 7
E (x - 6)^2 + (y + 1)^2 = 7

Answers

Answer:

D [tex] (x +6) ^2 +(y-1)^2 =7 [/tex]

Step-by-step explanation:

Center of the circle (h, k) = (-6, 1)

Area of the circle [tex] =\pi r^2 [/tex]

[tex] 7\pi=\pi r^2 [/tex]

[tex] \frac {7\pi}{\pi} =r^2 [/tex]

[tex]r^2=7[/tex]

[tex]r=\sqrt 7[/tex]

Radius [tex] r=\sqrt {7}[/tex]

Equation of circle in center radius form is given as:

[tex] (x - h) ^2 +(y-k) ^2 =r^2 [/tex]

Plugging the values of h, k and r in the above equation, we find:

[tex] [x - (- 6)] ^2 +[y-1 ]^2 =(\sqrt {7})^2 [/tex]

[tex] (x +6) ^2 +(y-1)^2 =7 [/tex]

What is y if x= -2 and y = 1/2x?

if you do links i will band you

Answers

put the -2 into the y=1/2x
y=1/2(-2)
y =1/-4

In a race, 24 out of the 25 bicyclists finished in less than 57 minutes. What percent of bicyclists
finished the race in less than 57 minutes? Write an equivalent fraction to find the percent

NO LINKS

Answers

55 because it’s better and makes more sense

How much money is 15% of $ 14.99

Answers

Answer:

The discount is $2.25 and the final price will be $12.74

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 14.99 × 15/100

Discount = 14.99 x 0.15

You save = $2.25

Final Price = Original Price - Discount

Final Price = 14.99 - 2.2485

Final Price = $12.74

hope this helps and is right. p.s. i really need brainliest :)

Answer:

$12.74

Step-by-step explanation:

15% of 14.99 dollars

14.99-2.25=12.74

Final answer=12.74 dollars

Find the value of x in the triangle shown below.
a. x=21
b. x=42
c. x= 15
d. x=21

Answers

Answer:

Answer:

[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]

by using Pythagoras law:

h²=p²+b²

x²=9²+12²

x=√225=15unit

A scale model of an object has a scale of 1cm : 2ft. The actual object is 11 feet tall. How tall is the model?

Answers

Given:

The scale model of an object has a scale of 1cm : 2ft.

The actual object is 11 feet tall.

To find:

The height of the model.

Solution:

It is given that the scale model of an object has a scale of 1cm : 2ft and the actual object is 11 feet tall.

Let the height of the model be x cm.

[tex]\dfrac{x\ cm}{11\ ft}=\dfrac{1\ cm}{2 \ ft}[/tex]

[tex]x\ cm=\dfrac{1 \ cm\times 11\ ft}{2 \ ft}[/tex]

[tex]x\ cm=5.5\ cm[/tex]

Therefore, the model is 5.5 cm tall.

Find the surface area of the rectangular prism below.

Answers

Answer:

630 ft

Step-by-step explanation:

(11 * 15) * 2 = 330 ft

(5 * 15) * 4 = 300 ft

330 + 300 = 630 ft

The area of a triangle is 92 square inches. The base is 23 inches. What is the height in inches? Do not include units in your answer.

Answers

Answer:

34,5 ?? I am not good at this but I did 92-23 that's 69 ÷ 2 = 34.5 ?

Answer:

Step-by-step explanation:

We can use the formula for the area of a triangle, to help us find the height:

Area=12⋅b⋅h

Using the formula for area, we can solve for the height by plugging in the information we have about the area and the base:

92=12⋅23⋅h

Isolate h by multiplying both sides by 2 and dividing both sides by 23.

hh=2⋅9223=8

The height is 8 inches.

What is the solution to this equation?
2x + 10 = 28
Record your answer and fill in the bubbles on your answer document. Be sure to use the
correct place value.

Answers

Answer: x = 9
Hopefully this helps

Solve the formula Ax + By = C for A

Answers

Ax+By=C
Ax=C-By
A=C-By/x
Other Questions
Use the following account balances from the adjusted trial balance of Flora Wholesalers: Account Debit Balance Credit Balance Cash $4,200 Accounts receivable $300 Accounts payable $1,100 H. Jones, Capital $4,400 H. Jones, Drawing $900 Fees revenue $13,200 Advertising expense $8,100 Travel expense $4,200 Shipping expense $300 Computer software expense $400 Required:What accounts of Flora Wholesalers will have the same balance at the beginning of next year as it does presently on the adjusted trial balance? Marsha heard that 15% of her algebra class failed.If there were 20 students in the class, how many did not pass? Controlling populations of harmful invasive species is a challenge. Using any pest control method could potentially harm the ecosystem. If you had to decide whether to use the frog control method proposed by the scientists in the video, what five questions would you ask the scientists before making your decision? . If x = -4 and y = 2x 1, then y equals what number? Complete for BRAINLIST (write in your own words)1.What does it mean an artwork is abstract?2.What inspired kandinsky to creat his artwork?3.Kandinsky paintings"making the unseen seen".What does that mean?4.Kandinsky create sapce and depth in his painting?5.What are the three kinds of balance in an artwork?Define them6.What kind of balance did kandinsky use in his painting that you chose? picture of question below 4.78 times 10 to the 6th power was the largest attendance record of the polar bear express. chilly football extravaganza. 3.98 times 10 to the 6th power attended at the last last pb express event. how many more people were in attendance on the record-setting day? https://flvsstudent-my.sharepoint.com/:w:/g/personal/omid2005_paec_flvs_net/Ef9iDikCqzBGvlzLSg4CXykB3ZM9ZCbJ_3Wi9JwUSVCuBw?e=BstDbpHeyyy The body's inability to breakdown or digest foods is called FoodIntolerance.TrueFalse Solve the following problems using ELIMINATION.(pls explain steps also! Giving Brainliest for correct answer and if you actually showed work and tried :))8x - 5y =-182x + 5y = 58 A toy rocket is launched from a platform 33 feet above the ground at a speed of 83 feet per second. The heightof the rocket in feet is given by the polynomial -167 + 83t + 33, where t is the time in seconds. How high willthe rocket be after 3 seconds?HELP ASAP Read the body paragraph from a student's rhetoricalanalysis essay.Whichsentence should be deleted from this bodyparagraph?wexler uses juxtaposition to create support for a newway of teaching civics. She criticizes "action civics,"which she thinks can "entrench (students) in theirpreexisting perspective." Instead, Wexler suggestsjournalism as a way to teach students to see differentperspectives. Wexler proposes that civics teachersencourage their students to attend city council andschool board meetings to report on local politicalmatters. This allows students to "[perform) a publicservice-and gain an understanding of howgovernment works." She does note that our deeplyflawed approach to writing instruction has left manyteenagers unable to express themselves well inwriting." By juxtaposing flawed teaching methods andnew ways of teaching civics, Wexler effectivelysupports the claim that reform in civics education isneeded.(A)Wexler uses juxtaposition to create support for anew way of teaching civics.(B)Wexler proposes that civics teachers encouragetheir students to attend city council and school boardmeetings to report on local political matters(C)She does note that our deeply flawed approach towriting instruction has left many teenagers unable toexpress themselves well in writing."(D)By juxtaposing flawed teaching methods and newways of teaching civics, Wexler effectively supportsthe claim that reform in civics education is needed. How does literature reveal the values of a certain time period? In discus throwing, which way is the palm of the hand face for proper techniqueA) up B) down C)sideways D) doesnt matter Based on this picture and your knowledge of the Pythagorean Theorm, what is the ara of the empty square? Is this the correct answer? Carole worked her 40 regular hours last week plus 6 overtime hours at the time-and-a-half rate. Carole's regular hourly rate is $11.50. How much did Carole get paid last week? What is true of factories in New York City before the triangle fire? __oil is necessary articlea)Ab)Anc) Thed)No article Can you give me 5 sentences Would you rather Moo like a cow after every sentence or bark like a dog?