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]
3 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]3 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
What is the answer for <br> 4[8-(8)]+1
ivann1987 [24]

Answer:1

Step-by-step explanation:

7 0
3 years ago
Perimeter of 40 triangles when the sides are all 1 cm long
Marianna [84]

Answer: 120 cm.

Step-by-step explanation: Each triangle has 3 sides, and each side is 1 cm. Multiply the number of sides for one triangle by the total number of triangles. 3 x 40=120. The perimeter is 120 cm.

7 0
3 years ago
I need help with this answer
Llana [10]

Answer:

Im not sure but lets play warzone

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Un televisor costaba $9.000 y hoy cuesta<br> $500 menos, ¿cuál es el porcentaje de<br> descuento?
marusya05 [52]

A television used to cost $9,000 and today it costs

$500 less, what is the percentage of

discount?

Percentage discount: 5 5/9 percent

3 0
3 years ago
Match each equation with its number of unique solutions.
Anni [7]

Answer:

y = 3x^2-6x+3    one real solution  

y = -x^2 - 4x + 7     two real solution

y = -2x^2+9x-11       two complex solutions

Step-by-step explanation:

b^2-4ac = 0   1 repeated real solution

b^2-4ac > 0   2 distinct real solutions

b^2-4ac < 0   2 complex solutions

4 0
3 years ago
Other questions:
  • Katheryn gets paid $80,250 per year. How much is each one of her monthly paychecks? *
    15·1 answer
  • PLEASE HELP ILL GIVE BRANLIEST!!! ( and 50 points! )
    11·1 answer
  • Write the number of feet as a number of yards when necessary round your answer to the nearest tenths of a week 89 feet
    11·1 answer
  • ABC is similar to DEF. Find x.
    11·1 answer
  • Grandma​ Gertrude's Chocolates, a family owned​ business, has an opportunity to supply its product for distribution through a la
    10·1 answer
  • I need help please I don’t know how to make this can someone help me ?
    14·1 answer
  • HELP ME PLZZ I DONT UNDERSTAND THIS!!!!!!
    6·1 answer
  • What is the integer value for 27˚F
    14·1 answer
  • Charlotte has 85 stickers. Her brother has x times more stickers than her. Write
    12·1 answer
  • The equation f(x)= 2x-9 translate 6 units up is g(x)=
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!