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
Sonja [21]
3 years ago
13

Find the 9th term of the following geometric sequence: 1, –3, 9, –27. PLEASEEEEE HELP!!!!!!

Mathematics
1 answer:
lyudmila [28]3 years ago
6 0
Find common ratio
1 times -3=-3
-3 times -3=9

an=a1(r^(n-1))
a1=first term
r=common ratio
n=which term

an=1(-3)^(n-1)

9th term
n=9
an=1(-3)^(9-1)
an=1(-3)^(8)
an=1(6561)
an=6561


answer is D
You might be interested in
In the formula C= prn, p stands for
umka21 [38]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help 2=*255/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="93a5a6aad3bea6a6a5a6a5a3aa">[email&#
leva [86]
The answer is 45 grace
5 0
3 years ago
Please help me! I need this answered fast!
Sonja [21]

Answer:

1. I think it's A.

2. I think it's D

8 0
3 years ago
(2×10^6 )×(0.00009)<br><br> IN SCIENTIFIC NOTATION
pshichka [43]
In scientific notation the answer is: 0.00018 x 10^6
4 0
3 years ago
A = 1/2f(s + z) for s<br><br> Solve the following formula for the specified variable
Marat540 [252]

Step-by-step explanation:

\huge{\mathtt{\red{\underbrace{\overbrace{\pink{\boxed{\boxed{\blue{answer}}}}}}}}}

It is a little unclear when you state the problem what exactly is going on with that fraction. This is a common issue when you try to type up equations. On the right side, you have a fraction bar and then a bunch of stuff after it. We need to clear up what is supposed to be in the numerator and what is supposed to stay in the denominator. This is important not just for typing up questions on the internet to get help but in using your calculator as well. If what the equation means is that both "f" and "q+z" are in the denominator, but then on your calculator you type something 1 / 2 * f * ( q + z ), most calculators (e.g. TI 83/84 and almost any basic or scientific model) will interpret that as meaning only the 2 is on the bottom and the rest is on top.

If you meant the f and the q+z are on top, then Steve's answer is good.

If you meant the f and the q+z are supposed to be on the bottom, then we have a little bit different process.

First, write down the operations that are happening to q, and in what order they happen from inside out, that is, according to the regular PEMDAS rule:

1. z is added

2. 2f is multiplied

3. The result is divided into 1 (as opposed to being divided by 1).

So, to solve for q, we "invert" the order of operations and do the inverse operation of our 3 steps, and also in reverse order.

1. To get the big thing out of the denominator (Step 3), we will multiply both sides by 2f(q+z). Now we have:

C*2f(q+z) = 1, or as we normally write it,

2Cf(q+z) = 1

2. Now we have to adjust our steps just a little bit because we have the *C part too. So we will change Step 2 above to "2Cf is multiplied." We invert that by dividing, so we have:

q+z = 1/[2Cf]. Notice how I put brackets around the entire denominator so it's clear!

3. Finally to invert Step 1 we subtract z:

q = 1/[2Cf] - z

8 0
3 years ago
Other questions:
  • Please answer this correctly. if its spam or wrong i report correct you get brainliest
    15·1 answer
  • 331 students went on a field trip. Six buses
    6·1 answer
  • What is the approximate value of the correlation coefficient from the given graph
    7·1 answer
  • NEED HELP NOW! Explain why the two figures below are similar. Use complete sentences and provide evidence to support your explan
    9·1 answer
  • Laura has moved to a new apartment. Her schoolbooks comprising of different subjects are mixed in a bag during the move. Four bo
    13·1 answer
  • What are the roots of the following function?
    12·2 answers
  • The Corner Cafe offers a 10% off senior citizen discount. If Mr. and Mrs. Schmidt order $36.00 worth of food and are senior citi
    7·1 answer
  • X=? <br><br> 38 degrees 75 degrees
    7·1 answer
  • Can someone explain how you find the percent of a number? Im very confused ‍
    11·1 answer
  • Max points!! help please!!! tyyyyy
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!