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
AlekseyPX
3 years ago
6

The first term of a geometric series is 3, and the sum of the first term and the second term is 15. What is the sum of the first

six terms?
a) 1,023

b) 3,906

c) 4,095

d) 11,718
Mathematics
1 answer:
Ivan3 years ago
5 0
Sum of n terms in a geometric progression is given by Sn = a1 (1 - r^n) / (1 -r)

3( 1 - 4^6) / (1-4)

= 4,095
You might be interested in
How to solve Q 8,9,and 10.
iVinArrow [24]

Answer:

bbbbbbbbbbbbbbbbbbbbbbbbbb

Step-by-step explanation:

8 0
3 years ago
What is the image of the point (-3, 4) after a rotation of 180° counterclockwise
alukav5142 [94]

Answer:

-3 ,-4

Step-by-step explanation:

5 0
2 years ago
Determine the slope of the line passing through (-8,-5) and (-10,-9)
nikklg [1K]

Answer:

2

Step-by-step explanation:

y1-y2/x1-x2

6 0
2 years ago
Read 2 more answers
Find the value of a for which the solution of the inequality is all real numbers
Katen [24]

Answer:

a= \frac{4x+15}{x-3}

Step-by-step explanation:

8 0
3 years ago
Suppose 241 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea. Use a 0.05 significance
lana66690 [7]

Answer:

Null Hypothesis, H_0 : p = 0.20  

Alternate Hypothesis, H_a : p > 0.20  

Step-by-step explanation:

We are given that 241 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea.

We have to use a 0.05 significance level to test the claim that more than 20​% of users develop nausea.

<em>Let p = population proportion of users who develop nausea</em>

So, <u>Null Hypothesis,</u> H_0 : p = 0.20  

<u>Alternate Hypothesis</u>, H_a : p > 0.20  

Here, <u><em>null hypothesis</em></u> states that 20​% of users develop nausea.

And <u><em>alternate hypothesis</em></u> states that more than 20​% of users develop nausea.

The test statistics that would be used here is <u>One-sample z proportion</u> test statistics.

                     T.S. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }   ~ N(0,1)

where,  \hat p = proportion of users who develop nausea in a sample of 241 subjects =  \frac{54}{241}  

             n = sample of subjects = 241

So, the above hypothesis would be appropriate to conduct the test.

6 0
3 years ago
Other questions:
  • What is the measure of each interior angle of a regular octagon? enter your answer in the box?
    14·2 answers
  • Which expression has a value of 24?
    10·2 answers
  • Which represents all the values of x that make the rational expression undefined? x = –3 x = 7 x = –7 or x = 7 x = –3 or x = 3
    13·1 answer
  • What happens to water during evaporation?
    13·2 answers
  • Karlen started painting the walls at 10:45 am, and he said that he could complete the job at 5:25 pm. His father said that five
    14·1 answer
  • Factor the algebraic expression 21a + 9
    6·2 answers
  • 1.
    15·1 answer
  • What is the answer for this questions<br> and explain why
    14·2 answers
  • Which equation represents the vertical line passing through (7,-3)
    12·1 answer
  • Use the intercepts to graph the equation.<br><br> 7x-5y=35
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!