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
GenaCL600 [577]
3 years ago
9

What is the 8th term of the sequence 1, 3, 9, 27, 81,... .

Mathematics
1 answer:
slega [8]3 years ago
4 0

9514 1404 393

Answer:

  2187

Step-by-step explanation:

This geometric sequence has a first term of 1 and a common ratio of 3. Its general term can be written as ...

  an = a1·r^(n-1)

  an = 3^(n-1)

Then the 8th term is ...

  a8 = 3^(8-1) = 2187

You might be interested in
How do find the area of a sector​
Anna007 [38]

Answer:

To do this you must first determine what fraction of the circle is represented by the central angle 30°. Since there are 360° in a full circle, you can find the fraction of a circle by simplifying . The sector represents of the circle. To find the arc length, you now need to find the circumference of the entire circle.

Step-by-step explanation:

hope this helped. brainliest?

7 0
2 years ago
My calculator is dead and I don't have a charger any one willing to help I'll return
12345 [234]
I feel like you just want the answers right now. Tell me later if u want explanations.

1. D 2. J 3. B 4. F 5. D 6. G 7. B 8. J 9. B 10. G


6 0
3 years ago
Which graphs have a positive average rate of change?
adelina 88 [10]

Answer:

Step-by-step explanation:

In general, graphs that go from lower left to upper right have a positive slope (think of it as going up the stairs...positive), and graphs that go from upper left to lower right have a negative slope (think of it as going down the stairs...negative).  I don't see graphs here but use this general idea and you'll be fine.  Of course, this applies to graphs of lines of the form y = mx + b.

4 0
4 years ago
Create an expression to represent the following<br><br> (picture is included below)
zheka24 [161]

Answer:

7) x + 0.09x, where x is the price of the car

8) x + 0.05x where x is the price of clothing

9) It will take michael about 9.14 minutes to eat 32 cookies.

Step-by-step explanation:

7) 9% of x is the same as 0.09x, so you can write this:

x + 0.09x, where x is the price of the car

8) same thing for this one

x + 0.05x where x is the price of clothing

9) michael can eat cookies at a rate of 21 cookies per 6 minutes, or \frac{21}{6}

Because he will be eating them at the same pace, you can write an equation and solve for the variable:

\frac{21}{6} = \frac{32}{y}

cross multiply the proportion:

21 × y = 32 × 6

solve:

21y = 192

y ≈ 9.14

It will take michael about 9.14 minutes to eat 32 cookies.

This works because they both simplify to 3.5 cookies per minute

\frac{21}{6} = 3.5

\frac{32}{9.14} = 3.5

6 0
3 years ago
I do not understand this question? Using partial quotients, which would be the best choice for the first number to subtract in t
marysya [2.9K]

Answer:

B. 520

Step-by-step explanation:

Partial quotient is simply the method used to find the value of a quotient by dividing bits by bits until you get to the answer. For instance if you want to divide 124/4

Whatever closest multiple of 4 to 124 you remember, write it down. For instance I remember 80 first.

80 is the 20th multiple of 4 (80÷4 = 20).

Then subtract the number from the original number you want to divide

124 – 80 = 44

Again, write down the closest multiple of 44 you remember. To me is 40, and it is the 10th multiple.

Subtract 40 from 44 you have 4 left.

It's now easy to divide 4 by 4 which is 1.

To now get the quotient in total, you'll add up

20 + 10 + 1 = 31.

Therefore, to use partial quotient in this problem, the best choice to begin with will be 520 because it is the 20th multiple of 26. Although 780 is the 30th multiple of 26, 520 will be easier to remember. For this reason, it is the best choice.

3 0
3 years ago
Other questions:
  • (-1,-2) (2,7) in slope intercept form
    5·1 answer
  • Day 2 Cara wants to cover a wall with fabric the wall is 19' x 49' about how much fabric should Cara buy please help thanks
    11·1 answer
  • Please help with 1 and 3! Please tell me the answer! I'm crying in confusion! :(
    15·1 answer
  • The price of a​ four-star meal, only ​$5050 per couple decades​ ago, has since increased 400400​%. The current price of a​ four-
    7·1 answer
  • The city buses that run in your neighborhood stop every 12 minutes .The first bus arrives at 5:00 am for passengers.You get to t
    13·1 answer
  • A craftsman can sell 20 jewelry sets for $600 each. He knows that for each additional set he makes, the price of each set will d
    11·2 answers
  • Which triangles are similar? Fast please and show work!
    12·1 answer
  • Shirts are on sale 20% off! The original price of the shirt was $28.50. How
    12·2 answers
  • A sweater Nala wants to purchase is $24.95 and there is a sale for 15% off. Nala is in a location that does not tax clothing. Ho
    13·1 answer
  • Jamal has run 7 miles from point a to point b of a race. the entire race from point a to point c is 26 miles. how many
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!