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
Ivahew [28]
3 years ago
9

How many elements must a set have if the number of proper subsets of the set is one half

Mathematics
1 answer:
Svet_ta [14]3 years ago
5 0
2^n - 1 = 1/2(2^n)
2^1 - 1 = 2^1/2
2 - 1 = 2/2
1 = 1

Theefore, the set must have one element
You might be interested in
A lottery ticket has a grand prize of $31 million. The probability of winning the grand prize is .000000018. Determine the expec
vlabodo [156]

Answer:

$0.558

Step-by-step explanation:

The expected value is the sum of the value of each outcome times the chance that it happens. In this case, there are two outcomes:

  1. Win $31 million
  2. Win $0

Then our expected value can be calculated as:

EV=(31,000,000)(0.000000018)+(0)(1-0.000000018)=0.558

5 0
3 years ago
One-third the sum of 6 and 3
irina [24]

Step-by-step explanation:

1/3(6+3)

= 1/3(9)

= 3

......

8 0
3 years ago
Read 2 more answers
Will give points and brainliest
Sveta_85 [38]
Where is the picture I so i can anwser
5 0
3 years ago
Find the equation of the line passing through (3,4), (-1,-2).
Kryger [21]

Answer:

(y-(-2))/(x-(-1)= (-2-4)/(-1-3)

(y+2)/(x+1)= (-6)/(-4)

(y+2)/(x+1)= (3/2)

Cross multiplying

2y+4= 3x+3

3x-2y-1=0

7 0
3 years ago
(5+6p)(2)= IXL simplify the expression
Nadya [2.5K]
10+12p is the answer to that IXL problem
8 0
3 years ago
Other questions:
  • A travel agent is booking trips for tourists who travel from New York to Chicago. Tourists have three choices for how to travel
    14·1 answer
  • PLLLLLLLLLLLLLZ HELP ANSWER IF YOU KNOW
    12·1 answer
  • Calculate 3 over 4 ÷ 5 1 fifth
    14·2 answers
  • 400g of rapberries and 300g of strawberries cost £7.46. 500g of strawberries cost £4.10 work out the cost of 300g of raspberries
    6·1 answer
  • Qué características tiene un rombo
    5·1 answer
  • Y = 95°, find the measure of x
    14·1 answer
  • Any help please maths :)
    5·1 answer
  • PLEASE HELP ASAP!! WILL MARK BRSINLIEST
    13·2 answers
  • Solve the following systems. <br>8x -2y = -16<br> y = 8 + 4x<br>and<br>7x - y = 2<br>-7x + y = 2​
    9·1 answer
  • Translation four units down and two units right
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!