1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
meriva
4 years ago
8

2n + 3 = 5 N/2 + 1 = 9

Mathematics
1 answer:
ch4aika [34]4 years ago
3 0

Answer:

Hope This Helps

Step-by-step explanation:

The common difference (d) = 2

The first element (a) = 3.

So, the n-th term is

I = a + (n-1).d

= 3 + (n-1)×2

= 1 + 2n.

So the required sum is

= (n/2)(a + I)

= (n/2)( 3 + 1 + 2n)

= (n/2)(4 + 2n)

= n (n+2)

Visit Me @ farmerstelephone3.wixsite.com/pin-non

You might be interested in
3 consecutive integers is 234. What is the equation to solve this equations and what are the 3 integers?
Dmitry [639]

Answer:

1. The equation to solve this equations is:

= 3x = 231

2. The three integers are 77, 78 and 79.

Step-by-step explanation:

The sum of 3 consecutive integers = 234

let x = first integer

let x+1 = second integer

let x+2 = third integer

Therefore,

= x + x + 1 + x + 2 = 234

simplified to:

= 3x = 231

b) Adding three consecutive numbers adds the smaller number to itself three times, and then adding 1 for the second number, and two for the third number. So, the sum of the three consecutive numbers is divisible by 3.  Therefore, to get the second (or middle) number, divide the total by 3, and then subtract 1 and add 2 to get the first and the third numbers, respectively.

3 0
3 years ago
Plisss help write the linear equation that vives the rule for this table ​
sineoko [7]

well, we know is a line,  and to get the equation of any straight line all we need is two points, hmmm let's use from the table hmm say (2 , -50) and hmmm (4 , -88)

(\stackrel{x_1}{2}~,~\stackrel{y_1}{-50})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-88}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-88}-\stackrel{y1}{(-50)}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{2}}}\implies \cfrac{-88+50}{2}\implies \cfrac{-38}{2}\implies -19

\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-50)}=\stackrel{m}{-19}(x-\stackrel{x_1}{2}) \\\\\\ y+50=-19x+38\implies y=-19x-12

5 0
2 years ago
Which of the binomials below is a factor of this trinomial?
blsea [12.9K]

Answer:

D. x-6

Step-by-step explanation:

4x^2 - 4x - 120

4(x-6)(x+5) are the factors.

5 0
3 years ago
Solve for x. Round to the nearest hundredth.
8_murik_8 [283]

Answer:

Do you have a picture?

Step-by-step explanation:

6 0
3 years ago
What is the answer plzzzzzz help a kid out
Komok [63]

Answer:

the answer is 8 by one of this question.

4 0
4 years ago
Other questions:
  • HELP ASAP PLS!!!!!!!!!
    6·1 answer
  • I need help pls and thank you
    5·1 answer
  • Pls answer this for me now
    13·1 answer
  • ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    12·2 answers
  • What’s 9/8 - 5/12 ? Need help
    11·2 answers
  • A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a ch
    12·2 answers
  • What does Z equal? Anyone know please help
    14·2 answers
  • Solve the inequality below and identify the correct answer: X - 2<-4
    7·2 answers
  • Wolfman and Dracula we’re having a contest to see who can scare people the most for every three people Dracula scare Wolfman sca
    7·1 answer
  • Is the equation y=5/3x-100/3 a function explain why or why not
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!