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
Help please !!!!! Due today !! (Pls don’t type then not answer) !
DochEvi [55]
I believe the answer would be yes, because as the radius increases, the circumference of the object also increases
4 0
3 years ago
70 points I need help ASAP on everything but part A (WILL GIVE BRAINLIEST) Roller Coaster Crew Ray and Kelsey have summer intern
Airida [17]
7 is the right answer to the question
6 0
3 years ago
Read 2 more answers
Find A, B, and C <br> Help ASAP!<br> {10 points up}
Rama09 [41]

so we have a 60-30-90 triangle (top one)

so since we know 6 is x (the side on the right angle and 60 degrees)

b is 2x or 2(6) = 12

a is x√3 = 6√3


for C I need to use a 45 45 90 triangle

Since b is 12 and its x√2  to find x we should write it as

x√2 = 12

√2     √2  divide by √2

x = 12/√2  but we must rationalize the denominator

12/√2  times √2/√2  = 12√2/2 and that's c


6 0
3 years ago
You have a spinner with the following colors 2 yellow, 4 red, and 2 orange. What is the likelihood of the spinner landing on YEL
crimeas [40]
Unlikely
ur chance of landing on yellow is 2/8
6 0
2 years ago
Read 2 more answers
How many solutions does the equation 4x + 2(x − 5) = 3(2x − 4) have? Group of answer choices infinitely many solutions no soluti
aleksandrvk [35]

Answer:

absolutley no solutions

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Please help me out I appreciate it
    14·1 answer
  • In Mr Tarkiainens each student chooses two of the topics listed in the chart above for their papers how many different pairs can
    6·1 answer
  • Compute the standard deviation for the set of data.<br><br> 13.3, 14.3, 15.3, 16.3, 17.3
    5·1 answer
  • Given triangle JKL find m
    11·1 answer
  • Pls help me, it’s equations
    10·1 answer
  • Is 128 is a perfect cube​
    14·2 answers
  • 58 (6x+2)<br> Find the value x
    15·2 answers
  • Find the value of the power.<br>(3/4) to the power of 4​
    5·2 answers
  • Please answer for geometry
    10·1 answer
  • mark spent 135$ on his comic book collection. he just sold it online for 310$. approximately what is the profit as a percent of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!