Find the sum of first term of the sequence 1,2,4,8,12

Answers

Answer 1

Answer:

The right solution is "18". A further explanation is given below.

Step-by-step explanation:

The given series is:

1,2,4,8,12

Here,

First term,

a₁ = 1

Second term,

a₂ = 2

Last term,

n = 12

Now,

The sum of the sequence will be:

⇒ [tex]S_n = \frac{n ( a 1 + a 2 ) }{2}[/tex]

On substituting the values, we get

⇒      [tex]=\frac{12(1+2)}{2}[/tex]

⇒      [tex]=\frac{12\times 3}{2}[/tex]

⇒      [tex]=\frac{36}{2}[/tex]

⇒      [tex]=18[/tex]


Related Questions

Express 0.0175 in scientific notation.

Answers

Answer:

Step-by-step explanation:

1.75 x 10^-2

Answer:To equal the original number, you would have to multiply 1.75 by 0.01 or 10-2. Therefore, the proper scientific notation for 0.0175 would be 1.75 x 10-2.

As a block of ice melts, its weight changes from 1 3/4 lb to 1/4 lb. This change takes 1/4 h. The ice melts at a constant rate. At what rate does the weight of the ice change? Show your work.

PLZ HELP ME

Answers

Answer:

2.25

Step-by-step explanation:

I think it is this in fraction form 2 1/4

magggie wants to pack 20 cokkies equally in boxes each box holds 5 cookies how many boxes does she need

Answers

Answer:

4 boxes

Step-by-step explanation:

20 ÷ 5 = 4

hope this helps

Solve each equation.
Show or explain your method.
5(y+25)=-13

Answers

Answer:

[tex]5(y + 25) = - 13 \\ 5y + 125 = - 13 \\ 5y = - 13 - 125 \\ 5y = - 138 \\ y = - \frac {138}{5} [/tex]

Hep meeee shhdjahsnsjsnsnsjjsnssjsusns

Answers

Answer:

X= 42 degrees

Step-by-step explanation:

When combining 3x+12 and x, this results in a 180 degree angle to be formed. Therefore create the equation 3x+12+x=180 to get the value of X.

3x+12+x=180

4x+12=180

-12.     12

4x= 168

x= 42

i don’t understand??

Answers

Answer:

[tex]\huge\boxed{\sf x = 10}[/tex]

Step-by-step explanation:

Hypotenuse = x

Base = 4

Perpendicular = [tex]\sqrt{84}[/tex]

Using Pythagoras Theorem:

[tex]\sf H^2 = P^2 + B^2\\\\ x^2 = (\sqrt{84} )^2 + (4)^2\\\\x^2 = 84 + 16\\\\x^2 = 100\\\\Taking \ sq \ root \ on \ both \ sides\\\\x = 10\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Find m show work pls

Answers

Answer:

Where is M??

Step-by-step explanation:

Find the measure of the missing angle

A-53
B-67
C-120
D-60

Answers

Answer:

D-60

Step-by-step explanation:

All angles in a triangle add up to 180

What is m∠RVS?
What is X?

Answers

9514 1404 393

Answer:

∠RVS = 154°x = 12

Step-by-step explanation:

The diameter cuts the circle into parts that total 180° of arc.

  RS +ST = 180°

  RS = 180° -ST = 180° -26° = 154°

 ∠RVS = 154°

__

This value can be used to find x. Equating the angle measures, we have ...

  RS = (15x -26)° = 154°

  15x = 180 . . . . . divide by °, add 26

  x = 180/15 . . . . divide by 15

  x = 12

Subject:Mathematics ​

Answers

Answer:

range = 12

IQR = 8

Step-by-step explanation:

Given the formula for the range and inerquartile range, each attribute can be found by substituting values from the data set.

the quotient of x and the sum of three and one

Answers

The quotient of x and the sum of three and one:

x/4

Point R is located at (-4,6) On a coordinate plane point T is located at (5,-2) What is the distance between points R and point T

Answers

Answer:

-1, 4

I know this bc i am smart

1
Mrs. Wang has a bag that contains 15 pounds of sugar. For each cake she makes, she uses pound of sugar. How
5
many cakes can she make from the 15 pound bag of sugar?
F 20
75
H
5
15
1
20
Sharon Wells Mathematics Cumulum. Inc 2100-
Grade 5 So Wecks Week 1 Assessment​

Answers

Answer: she can make 3 cakes with 15 pounds of sugar

Step-by-step explanation: 15÷5=3

15.. if that question is typed out correctly

Find the following angles from the above rectangle. ( answer only 5-12) please :)

Answers

The believe the answer is

10. FAE

here’s what i got

5.) 37°
6.) 53°
7.) 37°
8.) 53°
9.) 90°
10.) 37°
11.) 53°
12.) 37°

how many times does 94 go into 376?

Answers

Answer:

4 times

Step-by-step explanation:

376 divided by 94

Or

94 times 4

Will let you verify/know you’re answer. Hope this helps have a good day!

What is the answer 3.14x6=

Answers

3.14 x 6 = 18.84
The answer is 18.84

The value is 18.84.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

3.14 x 6

Multiply the values.

= 18.84

Thus,

The value is 18.84.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

Can someone help me, what do I put in the 4 boxes below?

Answers

Answer:

so simple pls follow up..

Inbox me

*
What is the slope and y-intercept of y=-3x+7?

Answers

Answer:

The slope is -3 and the y-intercept is (0, 7)

Step-by-step explanation:

In the slope-intercept form (y=mx+b), m is the slope and b is the y-intercept. -3 is substituted for m and 7 is substituted for b in your equation.

5
Which of the following sets of values completes the function table?
Input (x)
3x-1
Output (y
2.
3(2) - 1
3
313) - 1
4
3[4)-1
A) 0,1,2
B 5, 8, 11
5, 6, 7
D) 6,9,12

Answers

Answer:

5, 8, 11

Step-by-step explanation:

3(2) - 1 = 5

3(3) - 1 = 8

3(4) - 1 = 11

Answer:

27,81

Step-by-step explanation:

What is the equation of the axis of symmetry for the quadratic equation y = 3 * (x - 6) ^ 2 - 10 ?
1) x = -6

2) x = 6

3) y =6

4) y = 10

HURRY !!! (28 points )

Answers

Answer:

Step-by-step explanation:

either 10 or 6 heres this

The room can hold a maximum of 400 people. If there are already 134 people
there, how many more can come? Identify the inequality that represents this
situation.
A-x - 134 < 400

B-x + 134 < 400

C-x - 134 <400

D-x + 134 < 400

Answers

Answer:

x+ 134 is less than or equal to 400 is the answer

Could someone please explain how to solve this equation step by step? -9/2 + 2x+9/2x =-5

Answers

Answer:

nope sorryyyyy

Step-by-step explanation:

hahahaha

What’s the answer plz help

Answers

Answer:

higt

Step-by-step hexplanation:i

What is the HCF of 280, 112, and 140.​

Answers

Answer:

Step-by-step explanation:

First find prime factorization of the numbers

280=2^3(5)7

112=2^4(7)

140=2^2(5)7

So the HCF is 2^2(7)=4(7)

HCF=28

Evaluate the expression (13 − 3)2 ÷ 50.

The value of the expression is

Answers

Answer:

0.24

Step-by-step explanation:

(13 - 3) 2 / 50

10 + 2 / 50

12 / 50

=0.24

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Answer:

Exact form: 2/5

Decimal: 0.4

Step-by-step explanation:

which of the following is not an undefined terms in geometry

Answers

Answer:

First where are the "following" and this should be in geometry

Step-by-step explanation:

question:

i am not able to see the following. maybe you forgot to add it in? its okay since i have done that mistake before! but i wont be able to help with a problem i cant see :(

I need HELP pleaseeeee!

Answers

Answer:

c) 190.6 ft

we first must calculate the height of the tree, and let's give it T

T = tan(47) × 130

T = 1.07.. × 130

T = 139.40.. ft

now we will calculate the distance between the top of the tree and the tip of the casted shadow, and let's give it D

D² = 130² + 139.40²

D² = 16900 + 19434.57..

D² = 36334.57..

D = √36334.57..

D = 190.6 ft

solve 5x + 17 = 3x - 7 pleaseeeee hurryyy

Answers

Answer:

14 141414141414114141411

Answer:

PLEASEEE SOMEONE HELP ME ON THIS!!!! It’s due in a couple hours

Answers

Answer:

x = 8.0 m

Step-by-step explanation:

With the angle presented, I'm assuming you know basic trigonometry. We know cosθ = adj/hyp from SOH CAH TOA. We have angle and hypotenuse, so plugging in those values we get cos(20°) = x / 8.5. Solve for x to get 8.5cos(20°) = 7.987387277 m = 8.0 m.

Answer:

8

Step-by-step explanation:

This to the nearst tenth in decimal

PLEASE HELP!!! The question is below the graph.​

Answers

Answer:

Yes

Step-by-step explanation:

The line is good because it is representing the data accuratly because it is in the middle of all the data points and since all the point are near the line, it is accurate.

Other Questions
What is x? I will give brainliest if you explain your answer. 1) Which of the following lines has an undefined slope? A. y = 6x - 2B. y = 3C. y = -4x + 7D. x = -5 Someone help me thank you:) Margo is designing a label. The dimensions of the label are 3 1/2 inches by 1 1/4 inches. What is the area of the label? Can someone help me on determinant Giving brainiest and 5 stars ill give u 5 stars for trying.Glacier National Park spans one million acres of protected mountains, glaciers, and lakes. It forms part of the Continental Divide. On Triple Divide Peak, the Continental Divide meets the Northern Divide. Here, water can flow to the Atlantic, Pacific, or Arctic Oceans. Fortunately, people have left the park almost unchanged. The different plants, rare and endangered species, and vast water resources of Glacier National Park make its protection a top priority. In 1932, Rotary Clubs from Canada and the United States worked together to protect Glacier National Park and Canada's Waterton Lakes National Park. Combined, the parks form the first international peace park in the world. Glacier is also designated by UNESCO as a biosphere reserve and world heritage site.Glacier National Park experiences extreme weather changes. Conditions alter as the elevation increases. The warm air of the Pacific Ocean brings precipitation to the western part of the park. In contrast, the Arctic Ocean's cold air makes the northeastern side drier. The air from the Pacific Ocean and Arctic Ocean can collide on the Continental Divide. A blizzard can develop. As a result, these mountains can have 100 inches of annual snowfall. The clashing winds also contribute to extreme temperature changes. A nearby town holds the world record for temperature change. In 1916, Browning's temperature decreased by 100 degrees Fahrenheit in one day! Glacier National Park is indeed a place of contrasts.Glacier National Park's unique combination of lush vegetation, endangered wildlife, and splendid natural landscapes attracts diverse people. Scientists research the impact of global warming on the shrinking glaciers. Interested people learn about Native American traditions. Many visitors drive the popular Going-to-the-Sun Road or take a boat tour to experience a land carved by glaciers. Outdoor enthusiasts can bike, hike, horseback ride, fish, snowshoe, cross-country ski, or go white-water rafting. No matter the season, this vast land of majestic mountains and peaceful lakes truly embodies its name, Crown of the Continent.Glacier National Park is a popular destination for people who like to stay active. Based on the information in the article, why might this be true?A. Glacier National Park is a popular destination for people who like to stay active because there are many different types of weather.B. Glacier National Park is a popular destination for people who like to stay active because there are many outdoor activities available.C. Glacier National Park is a popular destination for people who like to stay active because they can learn about a different culture.D. Glacier National Park is a popular destination for people who like to stay active because they can research global warming issues. Can u do this for my lil sis she make me scan to much biological term for the germ layer that gives rise to the nervous system What are the differences between ribosomes in prokaryotes and eukaryotes? Eukaryotes have no ribosomes, but prokaryotes do. Prokaryotes have bigger ribosomes than eukaryotes. Prokaryotes have smaller ribosomes than eukaryotes. Prokaryotes have ribosomes, but eukaryotes lack them. All of the following are commonly used with fruit EXCEPTA. sugar.B. honey.C. animal fats.D. agave nectar. PLEASE HELP DUE IN 1 HOUR! Part AIn "Robots Are Cool, but Al is the Future," what ismost likely true about audiobooks in the Al age?The author will have the right to choose ifthe book is recorded using AI.The listener will decide if Al is used or ifhumans will be recorded.The listener will not be able to tell if thespeaker is a human or not.The publishing industry will rely on AI towrite the books they record. This federal agency maintains a database of complaints about businesses and provides education about money topics.A) consumer financial protection board.B) state securities board.C) food and drug administration.D) federal trade commission ??????????????????????? What must be true about segment MN? 58 points I need helpppp! Lists and Procedures Pseudocode Practice For each situation, provide a pseudocoded algorithm that would accomplish the task. Make sure to indent where appropriate. Situation A Write a program that: Takes the list lotsOfNumbers and uses a loop to find the sum of all of the odd numbers in the list (hint: use Mod). Displays the sum. Situation B Write a procedure that takes Which items are considered bases Group of answer choicesbattery acidsodium hydroxidemilkhousehold bleachbaking sodablack coffeelemon juice I will give extra points please help I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!