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
kobusy [5.1K]
2 years ago
12

A series consists of some numbers such that the summation of the divisors of any number of that series is 1 less than twice of t

hat number. For example the divisors of 4 are 1,2 and 4 and the sum is 7. If the numbers of this sequence are arranged in ascending order then what is the 9th term?
Mathematics
1 answer:
dezoksy [38]2 years ago
4 0

Answer:

The 9th term is 17179869184

Step-by-step explanation:

Here we have that;

The divisors of 1 = 1 which is 1 less than 1*2

The sum of the divisors of 2 = 1 + 2  = 3 which is 1 less than 2*2

The sum of the divisors of 4 = 1 + 2 + 4 which is 1 less than 4*2

The sum of the divisors of 8 = 1 + 2 + 4 + 8 which is 1 less than 8*2

The sum of the divisors of 32 = 1 + 2 + 4 + 8 + 16 + 32 which is 1 less than 32*2

The sum of the divisors of 256 = 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 which is 1 less than

The next numbers are therefore,

32 × 256 = 8192

256 × 8192 = 2097152 and the 9th term is therefore;

8192 × 2097152 = 17179869184.

You might be interested in
Kelly pays $25/sweater wholesale.find the salling price if her mark-up is 65%?
gladu [14]
This is another way of saying what is 165% of 25, because 65% of the sweater is the markup, and you add the markup to the whole sale.
165% is 1.65 in decimal form, so1.65*25=41.25
41.25 is your answer
3 0
3 years ago
A. x-6=8-(9+x)
Svetllana [295]

Answer:

Answer A = 5/2

Answer B = 4

Answer C = -3

Answer D = 3

Answer E = 12/5

6 0
2 years ago
Helppp please I have limited time
Sophie [7]

Answer:

p = <u>T</u> - a - <u>b</u>

Step-by-step explanation:

Hope that helps, not sure if it is correct though.

7 0
3 years ago
Read 2 more answers
Help 20 ptssss asap !
ELEN [110]

Answer:

Assuming you want an equation, y = -4/3x - 1

Step-by-step explanation:

Formula is y = mx + b

m = slope= -4/3

b = y-intercept = -1

4 0
3 years ago
PLEASE HELP!!!!!!
quester [9]

B

First you have to change 2 1/2 into 5/2

To multiply fractions use the method
Keep Change Flip

5/2 x 3/1 =15/2

Which simplifies to 7 1/2
6 0
3 years ago
Read 2 more answers
Other questions:
  • A company offered one half of its employees a bonus if the production of light bulbs increased by 20%. The other half of the emp
    8·1 answer
  • Find the point on the line y = 3x + 2 that is closest to the origin.
    6·1 answer
  • Jacqueline practiced drums four times last week for sessions of 40 minutes, 35 minutes, 45 minutes, and 30 minutes. Cassie pract
    9·1 answer
  • Audrey has the following T-shirts in her drawer. She will randomly choose one T-shirt then she will replace it and choose a seco
    5·1 answer
  • you go to the market to buy fruit.two apples and one banana cost $5. if you buy two apples and three bananas the cost is$7.how m
    10·1 answer
  • The base of a house has area 110 m². One night 12 mm of rain falls on the roof. All of the water goes into a tank which has base
    6·1 answer
  • I just need to figure this out.
    13·1 answer
  • Algebra 2 math. Can someone help me please?
    6·1 answer
  • Write the decimal and fraction in simplest form to represent the shaded portion of
    14·1 answer
  • Which of the following is most likely the next step in the series?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!