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
LekaFEV [45]
3 years ago
9

8th term of 1/4,1/8,1/16,1/32

Mathematics
1 answer:
sukhopar [10]3 years ago
4 0
a_1=\dfrac{1}{4};\ a_2=\dfrac{1}{8};\ a_3=\dfrac{1}{16};\ a_4=\dfrac{1}{32};...\\\\it's\ a\ geometric\ sequence\ where\ a_1=\dfrac{1}{4}\ and\ r=\dfrac{1}{8}:\dfrac{1}{4}=\dfrac{1}{2}\\\\a_n=a_1r^{n-1}\\\\n=8\\\\a_8=\dfrac{1}{4}\cdot\left(\dfrac{1}{2}\right)^{7-1}=\dfrac{1}{4}\cdot\left(\dfrac{1}{2}\right)^6=\dfrac{1}{4}\cdot\dfrac{1}{64}=\dfrac{1}{256}
You might be interested in
55 is what percent of 1,100 ?
lesya692 [45]

Answer:

Hello There!!

Step-by-step explanation:

55 is what percent of 1100? => 0.05.

hope this helps,have a great day!!

~Pinky~

4 0
3 years ago
-13 +(-4)-(2-10) +8.
Zolol [24]
I believe the answer is -1
3 0
2 years ago
An online bookstore sells all paperback books for x dollars each. Aidan bought 7 paperback books and spent $3.95 on shipping. Ni
rusak2 [61]

Answer:

Here's the answer

Step-by-step explanation

y= 18x+9.20

8 0
2 years ago
Solve for x in the diagram below.
Ghella [55]

Answer:

x= 20

Step-by-step explanation:

The three angles add to 90 degrees

x+2x+x+10 = 90

Combine like terms

4x+10 = 90

Subtract 10 from each side

4x +10-10 = 90-10

4x = 80

Divide by 4

4x/4 = 80/4

x = 20

6 0
3 years ago
Read 2 more answers
What is equivalent to log 25<br> 125
nexus9112 [7]
Log25 (5•25) = 3 over 2 aka 3/5
5 0
3 years ago
Other questions:
  • I just need the answer. ( look at the picture )
    13·1 answer
  • Factor completely 36x^2-49.
    11·1 answer
  • in order for mark to get to work he needs to drive 10 miles south and 20 miles east. how many miles would he have to go if there
    15·1 answer
  • What kind of number is a negative number?
    9·1 answer
  • The endpoints of segment ST are (1, -3) and (5, 7). What are the coordinates of the<br> midpoint?
    10·1 answer
  • There are 100 books in the library. There are non-fiction and fiction books. Write the fraction of the books that are fiction.
    9·1 answer
  • Round your answer to the nearest hundredth AB=
    7·2 answers
  • X 5. Solve.
    13·1 answer
  • Can someone help or explain please
    11·1 answer
  • I don’t get it because I don’t have a calculator
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!