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
Wittaler [7]
3 years ago
15

Find the 8th term of the geometric sequence, given the first term and common ratio. a1=6 r=-1/3

Mathematics
1 answer:
Damm [24]3 years ago
8 0

The rule of a geometric sequence:

a_n=a_1r^{n-1}

We have:

a_1=6;\ r=-\dfrac{1}{3}

Find a_8=?\to n=8

substitute:

a_8=6\cdot\left(-\dfrac{1}{3}\right)^{8-1}=6\cdot\left(-\dfrac{1}{3}\right)^7=6\cdot\left(-\dfrac{1}{2187}\right)=-\dfrac{2}{729}

You might be interested in
(4a - 3b + 4c) + (8a - 2b + 3c)
Monica [59]

Answer:

<em>Hey mate, here's ur answer:</em>

<em>----------------------------------------------------------</em>

<em>(4a - 3b + 4c) + (8a - 2b + 3c)</em>

=4a+−3b+4c+8a+−2b+3c

=(4a+8a)+(−3b+−2b)+(4c+3c)

<u>=12a−5b+7c</u>

----------------------------------------------------------

<em>Hope it helps</em>

<em>#stayhomestaysafemate</em>

<em>:D</em>

5 0
3 years ago
Can someone help me please !! I’m so confused Thank you
sergiy2304 [10]

Answer:

I have no idea if this would be right but I am guessing (for the 1/5 one) if you put 5 different colored marbles in a container and wanted to pull out a red one. You can also do this for the 1/10 one just use a different object.

5 0
3 years ago
Add 1/2 + (-3/4)= show the work
AlekseyPX
2/4 - 3/4 = -1/4 hope this helps...
4 0
3 years ago
Read 2 more answers
What is value of the digit 5 in the number 75
ycow [4]
First, think of your places. You have the ones places, tens places, hundreds places, and so on. 

The first number starting from the right is the ones, and as you keep going left, the value of each given digit becomes higher.

Since 5 is in the ones place, its value would be just 5. If it were in the tens place, it would be 50. If it were in the hundreds place, it would be 500, and so on. 

Think of it this way;

Ones is just one. If a number is in the 'ones' place, its value would be a single digit. If it were in the tens place, its value would be two digits. 
That's how it would be for each place going left. 
Every number you move to the left, its value gains a one.

So here's an example: 
5555

The value of 5 in the ones place "5555" is simply 5.

In the tens place, you end up adding one zero, so the value of the second five to the left would be, "50"

So with that said, the value of the digit 5 in the number 75 is <em>5.

</em>
Haha, hope this cleared up any confusion, and have a <em>wonderful </em>day! :)<em>
</em>
7 0
3 years ago
Read 2 more answers
Sin 90 +cos 50 -tan1​
Feliz [49]

Answer:

1.62533254

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Simon bought 2/3 pounds of cookies He ate 4/5 of the cookies he bought what was the weight of the cookies that Simon ate
    8·2 answers
  • Explain how you can use an array to find partial products for 4x36
    9·1 answer
  • What is the range of f?
    9·1 answer
  • Louie the dog eats 1.5 cans of
    13·1 answer
  • Answer Right For Brainliest upgrade
    7·2 answers
  • Which volume formula(s) could be used to calculate the volume of a rectangular
    14·1 answer
  • 6x=72
    11·1 answer
  • I need help on number one please!<br> Points!!!
    8·1 answer
  • PLSSSSS HELP ME<br><br><br><br> X+18+2x+17=17
    10·1 answer
  • find the area under the standard normal distribution curve to the right of . use a ti-83 plus/ti-84 plus calculator and round th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!