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
adell [148]
3 years ago
5

Evaluate the sum of the following finite geometric series. 5+15+45 +135+ . . . + 1215 Sn=1

Mathematics
1 answer:
Nata [24]3 years ago
5 0

Answer:

1820

Step-by-step explanation:

The sum of the first n terms of a geometric series with common ratio r and first term a is:

a(1-r^n)/(1-r). Plugging this in 5(1-3^6)/(1-3)=1820

You might be interested in
Can someone help me with question 6 please
SIZIF [17.4K]
A) 4a+3w
b) 2b+h
c) 3(w+h)
d) (4a+3w)(2b+h) - 3(w+h)
just expand brackets for d and simplify
6 0
2 years ago
Read 2 more answers
1(6x - 9) = (4x - 6)
ruslelena [56]

1(6x-9)=(4x-6)  

One solution was found :

                  x = 3/2 = 1.500

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    1*(6*x-9)-((4*x-6))=0  

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

2.1     Pull out like factors :

  6x - 9  =   3 • (2x - 3)  

Equation at the end of step  2  :

 3 • (2x - 3) -  (4x - 6)  = 0  

Step  3  :

Equation at the end of step  3  :

 2x - 3  = 0  

Step  4  :

Solving a Single Variable Equation :

4.1      Solve  :    2x-3 = 0  

Add  3  to both sides of the equation :  

                     2x = 3

Divide both sides of the equation by 2:

                    x = 3/2 = 1.500

One solution was found :

                  x = 3/2 = 1.500

3 0
2 years ago
Read 2 more answers
How do I do this ixl
svetlana [45]
The anwser that I know of is 6x+2
8 0
3 years ago
Flying to Kampala with a tailwind a plane averaged 158km per hr ... The the return trip the plane only averaged 112 km per . . w
AURORKA [14]
W=wind
p + w=158...p=158-w
p-w=112...p=112+w
SO 158-w=112+w
46=2w
23=w
SO in conclusion you have the correct answer of wind being 23km/h while the plane is going 135 km/h

HOPE THIS HELPS!
6 0
3 years ago
Sarah bought a shirt on sale for $35 the original price of the shirt was 3 times that amount sarah also bought a pair of shoes o
Ulleksa [173]
Together it would of been $315
4 0
3 years ago
Other questions:
  • 32 • 3-5 = 3-3 = (1/3)3= 1/27
    6·2 answers
  • Whats between 0.4 and 0.5
    10·2 answers
  • What is the verbal expression for 4q ?
    14·1 answer
  • Amel is trying to estimate how many boxes he will need to store his miniature car collection he is 538 cars and 27 cars will fit
    5·1 answer
  • I will give brain whoever gives the best answer
    9·1 answer
  • Solve 3x-4=17 you may use the flowchart to help if u wish
    14·1 answer
  • Please open the document to see the picture of the triangle. Find the area of the triangle. Remember: 1/2bh (1/2 x b x h). Also,
    6·1 answer
  • A fitness center offers yoga classes for $10 per class and sells yoga mats for $19.95. Linda paid
    9·1 answer
  • 5900 = 5400(1 + r/100)^3
    14·2 answers
  • At the beginning of each of her four years in college, Miranda took out a new Stafford loan. Each loan had a principal of $5,500
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!