Find the sum.

12Σn=1 3n +1

a. 252
b. 234
c. 246

Find The Sum.12n=1 3n +1a. 252b. 234c. 246

Answers

Answer 1

Answer: C

Step-by-step explanation:

[tex]Method\ 1\\\\\displaystyle \sum _{i=1}^{12} (3i+1)=\dfrac{((3*12+1)+(3*1+1))*12}{2} =(37+4)*6=246\\\\Methode\ 2\\\\\displaystyle \sum _{i=1}^{12} (3i+1)=\sum _{i=1}^{12} (1)+3*\sum _{i=1}^{12} (i)=12+3*\dfrac{(12+1)*12}{2} =12+3*13*6=246\\[/tex]

Answer C


Related Questions

Solve h + 6 / 5 = 2
Solve for h

Answers

Answer:

-1

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

h + 6 / 5 = 2     * 5

h + 6 = 10           -6

h = 4

26 555 355 + 24 653 456


:3

Answers

Answer: The answer is 51,208,811

Can we be friends?

Answer:

51,208,811

Step-by-step explanation:

Solve the exponential equation: 4 1/2x=256
A) x = 4
B) x = 2
C) x= 8
OD) x= 1/2

Answers

Hi there!

We are given:

[tex]4^{\frac{1}{2}x} = 256[/tex]

We can rearrange this into a logarithm:

[tex]log_4256 = \frac{1}{2}x[/tex]

Evaluate the left side:

4 = 1/2x

Multiply both sides by 2:

x = 8

Linda travels 58.6 miles each day for the past seven days how many miles did you drive in all?​

Answers

Answer:

410.2 miles total

Step-by-step explanation:

58.6 miles × 7 days = 410.2 miles

the endpoints of GH are G(-1,6) and H(1,-2) Find the coordinates of the midpoint M *please explain*

Answers

Answer:

( 0, 4 )

Step-by-step explanation:

midpoint formula: (x1 + x2/ 2, y1 + y2/ 2)

x1= -1

x2= 1

y1= 6

y2= -2

(-1 +1/ 2, 6 -2/ 2) -> (0,4)

the number of gallons of bottled water N consumed by a person in one year is approximated by N=0.733t + 8.398, where t is the number of years since 1971. Predict the number of gallons consumed by a person in 1985.

Answers

Step-by-step explanation:

N = 0.733t + 8.398

N = 0.733(1971) + 8.398

N = 1,453.141

Step-by-step explanation:

Solution,

According to question,

N=0.733t + 8.398

When t= 1971, then

N=0.733×(1971) + 8.398

N=1453.141

What is Q1 for this data set?

{2, 3, 5, 5, 6, 8, 8, 9, 10, 11, 11, 11, 12}

Answers

Answer:

Q1 = 5

Step-by-step explanation:

Q1 is the first quartile

Divide the data in half, that will get you Q2 or the second quartile

There are 13 data points so the middle is the 7th data point

2, 3, 5, 5, 6, 8,    8,       9, 10, 11, 11, 11, 12

Take the lower half of the data and divide it in half

There are 6 data points so the middle is between the 3rd and the 4th data point so we average them

2, 3, 5,    5, 6, 8,

(5+5)/2 = 10/2 = 5

The 1st quartile or Q1 = 5

Your answers will be Q1=5

the height of tower A is 842 feet more than tower B. the two towers have a combined height of 1,920 feet. what are the heights of each tower

Answers

884 + rit= 138 tres plas 0

The distance from the earth to the moon is two hundred thirty eight thousand, nine hundred miles. Write the distance in standard form and expanded form.

Answers

Answer:

Standard: 238,900

Expanded: 200,000 + 30,000 + 8,000 + 900

Step-by-step explanation:

The distance in standard form is 238,900 and in expanded form is 200,000 + 30,000 + 8,000 + 900.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the distance from the earth to the moon is two hundred thirty-eight thousand, nine hundred miles.

The number in standard form will be written as below:-

Standard form = 238,900

The number in the expanded form will be written as below:-

Expanded form = 200,000 + 30,000 + 8,000 + 900.

Therefore, the distance in standard form is 238,900 and in expanded form is 200,000 + 30,000 + 8,000 + 900.

To know more about an expression follow

https://brainly.com/question/295961

#SPJ2

The elevation of Lake Baikal is about 1,494 feet below sea level. Which integer represents this elevation?

Answers

Answer:

-1,494

Step-by-step explanation:

If sea level is 0, the on a scale below sea level would be a negative integer.

1. if f(x)=3x-1, find f(-5)

2. if h(x)=2x+3 and g(x)=3-4x, find 3h(1)-g(2)

Answers

Answer:

1 f(-5) = 3(-5)-1= – 15 – 1 = – 16

2. h(1) = 2(1)+3=2+3=5

g(2)= 3- 4(2)=3 – 8 = – 5

3h(1) ‐ g(2) = 3 (5) – (-5) = 15 +5= 20

I hope I helped you^_^

Answer:

number 1 =

Let  y=f(x)=3x−5

Clearly f(x) is one-one onto function so it is invertible.

y=3x−5 ⇒x =   y+5/3

∴f  −1 (x)=   y+5/3

number 2=

(g-h)= 4x+3-x3-2x3

(g-h)=4(-1)+3-(-1)2-2(-x)2

(g-h)=-4+3-(-1)-2(1)

(g-h)=-4+3+1 -2

(g-h) =  2

hope that helps>3

Step-by-step explanation:

Solve the equation
6x - 10 - 4x = 6x-5
HOME
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution is
(Type an integer or a simplified fraction.)
B. The solution is all real numbers.
O C. There is no solution.

(Answer quickly)

Answers

9514 1404 393

Answer:

  A.  The solution is x = -5/4

Step-by-step explanation:

Collect terms:

  2x -10 = 6x -5

Subtract 2x:

  -10 = 4x -5

Add 5:

  -5 = 4x

Divide by the coefficient of x:

  -5/4 = x

The solution is x = -5/4.

Choose all expressions that are equal to 5.
31÷6.2
27.6÷5.2
18.6÷4
6÷2.1
20.1÷4.1

Answers

Answer:

without rounding, only the 1st one would be equal to 5

Step-by-step explanation:

31÷6.2=5

27.6÷5.2=5.307...

18.6÷4=4.65

6÷2.1=2.8

20.1÷4.1=4.9

BUT HEY, I HAVE PARANOIA AND THIS TIME I DIDNT CHECK LIKE A DOZEN TIMES SO MAYBE IM WRONG

oh and i forgot to say have a nice day or night or etc and good luck!

Answer:

31 / 6.2 = 5

Step-by-step explanation:

31/6.2 = 5

27.6/5.2 = 5.3

18.6/4 = 4.65

6/2.1 = 2.86

20.1/4.1 = 4.90

what integer best represents that the temperature outside increased by 12°F?

I WILL APPRECIATE ​

Answers

Answer:

-11.11*C

Step-by-step explanation:

12°F − 32) × 5/9 = -11.11*C

The table below shows a linear relationship between x and y.
х
-4-2
0
6
у
8
5
2
-7
Which graph below represents the relationship in the table?

Answers

The only graph with the point (6,-7) on it is Graph D.

Find the slope and y-intercept of the line.
- 6x + y = 8
-...
Find the slope. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The slope of the line is (Simplify your answer. Type an integer or a fraction.)
OB. The slope of the line is undefined.
(Answer quickly)

Answers

[tex]\large \mathfrak{Solution : }[/tex]

let's write the given equation in its slope intercept form :

i.e y = 6x + 8

by comparing to the general equation : y = mx + c

we get, slope (m) = 6

What is the most precise (smallest) subset of real numbers that the following numbers
belong in?
17

Answers

Answer:

Even numbers are integers that have 2 as a factor; odd numbers are all the other integers. Prime numbers are integers that have only themselves and 1 as factors. Perfect numbers are integers whose factors add up to the number. The smallest perfect number is 6 and its factors, 1, 2 and 3 add up to 6.

Step-by-step explanation:

1,000,000,000,000 x 4
How do you write this with an exponet of 10

Answers

Answer:

12

Step-by-step explanation:

their is 12 zeros so it's 12

A garage sale has a total of 48 shirts
and 6 jackets for sale. Select the
answer that shows the ratio of shirts
compared to jackets in simplest form.

Answers

Answer:

d

Step-by-step explanation:

48/6=8

8/1

How many hours? Thank you for your time.

Answers

Answer:

3/4 hours I believe so??

If you spend ​$99.79​, in how many ways can you receive change from a one hundred​-dollar ​bill?

Answers

Answer:

3 different ways

Step-by-step explanation:

100 - 99.79 = 0.21

.21 = 2 dimes and 1 penny

.21 = 4 nickels and 1 penny

.21 = 1 dimes, 2 nickels and 1 penny


Select two ratios that are equivalent to 27 : 9.

Answers

Answer:

the ratio are missing

Step-by-step explanation:

27 : 9 can be written as

3:1

54 :18

Answers:

3 : 1

54 : 16

HELP WILL MARK BRainlIEST WITH EXPLANATION

Answers

[tex]Hello[/tex] [tex]There![/tex]

The answer is...

[tex]y=-8x+15.[/tex]

HERE'S THE EXPLANATION!

Let's solve for y.

[tex]8x+y=15[/tex]

Step 1: Add -8x to both sides.

[tex]8x+y+-8x=15+-8x[/tex]

[tex]y=-8x+15[/tex]

THE ANSWER!

[tex]y=-8x+15[/tex]

Hopefully, this helps you!!

[tex]AnimeVines[/tex]

Sorry for asking more questions

Answers

[tex]\text{CJ}=3\text{x}+6\\\\\text{CT}=37\\\\\text{JT}=3\text{x}+7\\\\\text{CJ}+\text{JT}=\text{CT}\\\\3\text{x}+6+3\text{x}+7=37\\\\6\text{x}+13=37 \ \ /-13\\\\6\text{x}=24 \ \ /:6\\\\\text{x}=4\\\\\text{JT}=3\cdot4+7=12+7=\boxed{19}[/tex]

Match the equivalent expressions. 36+24 plzz help bc i gotta finish today

Answers

Answer:

12(3+2)

Step-by-step explanation:

40%of a number is 160 what is 60% of the same number​

Answers

Answer:

38.4

Step-by-step explanation:

40%×160=64

60%×64=38.4

Which diagram represents the following sets

Answers

Answer:

not sure what is the question

Step-by-step explanation:

Can someone help me?? 3+3

Answers

Answer:

6

Step-by-step explanation:

count your fingers

The answer is 6 . I hope this helped you

Determine whether the equation is linear or not. Then graph the equation by finding and plotting ordered-pair
solutions.
y = 8x
.
Is the equation y = 8x linear or not?
not linear
linear

(Answer quickly)

Answers

Answer:

i dont know i just want points

Step-by-step explanation:

Answer:

no its not linear

Step-by-step explanation:

here is one example of a linear equation: y = 5x + 12

Let A = {a, b, c, d}, B = {a, c, d, e}. Let f : A → R and g : B → R such that f = {(a, 1),(b, 2),(c, 2),(d, 4)} and g = {(a, 0),(c, 4),(d, 8),(e, 0)}. State the domain and find: f − g​

Answers

Answer:

b, but don't have translate into a great day. I name and phrase, angle of measurementhhvgz just don't have money in a sentence, and the king not sure how it was a great app that is

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