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
Gre4nikov [31]
3 years ago
13

What is the sum of the arithmetic series below?

Mathematics
1 answer:
never [62]3 years ago
5 0
Our question transforms to finding the following sum : 3 + 7 + 11 + 15.... upto 15 terms 

<span>Use formula for sum of an AP series </span>

<span>S = (n * (2a + (n - 1)d)) / 2 </span>

<span>n -> no of terms in AP series , so n = 15 </span>
<span>a -> first term in series, so a = 3 </span>
<span>d -> common difference, so d = 4 </span>

<span>Put all values for a, n, d and you will get the sum.</span>
You might be interested in
Can anyone please help me with this RSM question? I have literally posted this like four times!
Ostrovityanka [42]

Answer:

Angles in a triangle add up to 180.

ABG - x + 90 + ANGLE AGB = 180

Angles on a straight add up to 180.

CDE - 8x + ANGLE D + 3x = 180

Alterate angles - ATTACHMENT

ANGLE D = x

8x + x + 3x = 180

12x = 180

x = 180/12

<h2>x = 15</h2>

5 0
3 years ago
Read 2 more answers
Solve -9.4 ≥ 1.7x + 4.2
kiruha [24]

Answer:

The answer to your question is x<-8, hope this helps :)

4 0
3 years ago
Read 2 more answers
3x + 8 = -x + 20 What is x?
g100num [7]
First, lets take all the x values on one side.

3x + x + 8 = -x + x + 20
4x + 8 = 20

Now, lets put the numbers on the other side.

4x + 8 - 8 = 20 - 8
4x = 12
x = 3

Hope this helps!
<span />
5 0
3 years ago
Read 2 more answers
2-(-2)= asaapaappaappap pleaseee help
IRINA_888 [86]

Answer:

Four is the final answer (4)

Step-by-step explanation: Have a brilliant day of learning!

7 0
2 years ago
Then p=3.<br> Use the equation k = 3n to find the value of k when n = 3.
Bad White [126]

Answer:

k = 9

Step-by-step explanation:

n = 3, so substitute 3 for n in the equation

k = 3(3)

k = 9

6 0
3 years ago
Other questions:
  • Lorenzo and Nicole surveys students about their favorite subject Lorenzo survey 24 student this is four times as many has the st
    5·1 answer
  • Chase is 57 years younger the. Kori. 8 years ago Kori age was 4 times Chase age. how old is chase
    11·2 answers
  • For In a=3.
    14·1 answer
  • Help I need to pass this!!!
    9·1 answer
  • A jar contains 550 beans. Of all the beans, 2/5 are white beans and the rest are navy beans. What is the ratio of white beans to
    12·1 answer
  • Sin(-230)=sin50 true or false
    7·1 answer
  • Ow all your calcula<br>(2+5)*+2​
    7·1 answer
  • Consider the quadratic equation ax2 + bx +5 = 0, where a,b, and c are rational numbers and the quadratic has two disticnt zeros.
    15·1 answer
  • Andrew plays football. On one play, he ran the ball 24 2/3 yards. The following play, he was tackled and lost 3 1/3 yards. The n
    5·1 answer
  • Will Can type 63 words in 90 seconds how can he type in 30 seconds
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!