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
jek_recluse [69]
3 years ago
15

Find Sn for the given arithmetic series. 01 = -40, d = -7, n = 22

Mathematics
1 answer:
iren [92.7K]3 years ago
6 0

Answer:

\large \boxed{-187}

Step-by-step explanation:

The formula for the sum of n terms of an arithmetic sequence is  

aₙ = a₁ + (n-1)d

If a₁ = -40, d = -7, and n = 22

\begin{array}{rcl}S_{22} & = & -40 + (22 - 1)(-7)\\& = &-40 + 21(-7)\\& = & -40 - 147\\& = & \mathbf{-187}\\\end{array}\\ \text{The sum of the first 22 terms is $\large \boxed{\mathbf{-187}}$}

You might be interested in
Factor to find all possible values for x:2x²+7X+5=0
AlexFokin [52]

Answer:

D. x = -5/2, x = -1/2

Step-by-step explanation:

2x² + 7x + 5 = 0

(2x + 5)(x + 1) = 0

2x + 5 = 0 or x + 1 = 0

2x = -5 or x = -1

x = -5/2 or x = -1/2

8 0
3 years ago
The large and medium shapes are scale drawings of the smallest shape the scale factor from the large shape to the media shape is
vovangra [49]

Answer:

25

Step-by-step explanation:

Add 65+40 which is going to give you 105 then once you get 105 subtract 65-40 which is going to give you 25 the 105 is the total so the whole answer is 25

5 0
3 years ago
sharon is participating in basketball practice with her basketball team. She knows that running 40 laps around the rectangular b
Serga [27]

Answer:

Sharon would have to run 24 ft.

Step-by-step explanation:

Begin by finding the perimeter by dividing 3,280 by 40.

Then eliminate D and E because they are larger than the total perimeter, and then plug in the remaining values into the perimeter and then see which also gives you the area.

This is how you get the answer 24 ft.

Hope this helped :D

5 0
2 years ago
Write in surd form<br><img src="https://tex.z-dn.net/?f=%20%7B13%7D%5E%7B%5Cfrac%7B5%7D%7B2%7D%20%7D%20" id="TexFormula1" title=
Airida [17]

Answer:

sqrt(13^2)

Step-by-step explanation:

this is the radical form of 13^(5/2)

6 0
3 years ago
Read 2 more answers
you live in the building on the left in the drawing, and a friend lives in the other building. the two of you are having a discu
denis23 [38]

Answer:

4

Step-by-step explanation:

6 0
4 years ago
Other questions:
  • Factor the expression 4x + 32. Explain each step you take in the process.
    9·2 answers
  • L=14j+3k solve for k
    11·1 answer
  • What's #2 and what's it in factored form
    11·1 answer
  • At the gym, Jasper was able to bench press 224 pounds, which was StartFraction 7 over 8 EndFraction of the weight that Balin was
    8·2 answers
  • The area of a rectangle is 150 in². The ratio of the length to the width is 3:2. Find the length and the width.
    11·1 answer
  • PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    8·2 answers
  • Determine whether the relation is a function
    5·1 answer
  • Hey guys I have a question why am I crying for one of my favorite teachers leaving for a little bit it is 5 months he is one of
    9·2 answers
  • 7.
    12·1 answer
  • Original cost; $98
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!