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
natulia [17]
3 years ago
14

Someone listed all the numbers from 0 to 99999 in increasing order. Then he crossed out all the numbers where some other digit(s

) besides 0 and 1 were used. A How many numbers does he have left?
Mathematics
1 answer:
777dan777 [17]3 years ago
5 0

Answer: he has 32 numbers left.

Step-by-step explanation:

The first given number is 0.

1-digit number 1 *1 (=1)

2-digit numbers (1 and , 2 choices for 2nd digit). 1*2 (= 2)

3-digit numbers ( 1, 2 and first choice for 3.). 1*2*2 (= 4)

4-digit numbers (we join our answer for 1,2 and 3 with first choice of 4). 1*2*2*2 (= 8)

5-digit numbers s (1, 2, 3rd, 4th & first Choice of 5th digits). 1*2*2*2*2 (= 16)

Total number range from 0 to 1.

1 + 1 + 2 + 4 + 8 + 16

= 2^5

= 32.

You might be interested in
In a study of 30 high school students, researchers found a high correlation, 0.93, between amount of exercise and weight lost. W
zloy xaker [14]

Answer:

Option A is true

The researchers proved that exercise causes weight loss only for high school students.

Step-by-step explanation:

We are told that the researchers found a high correlation, 0.93, between amount of exercise and weight lost.

Now, looking at each of the options;

- A is True because due to the high correlation, the research proves that exercise causes weight loss but only for high school students.

- B is not true because we are told the correlation is very high at 0.93. Thus, it is untrue that there is no proven causation.

-C is not true because there's no where that the researchers have completely proved that exercise causes weight loss generally. It is only peculiar to the high school students studied.

-D is not true because the 93% is just a correlation and not a percentage of those who lost weight

8 0
3 years ago
How long is a mac address? select one:
geniusboy [140]
Hey there!

A MAC, or Media Access Control, Address is a unique identifier that is assigned to devices connected to a network. It is 6-bytes, or 48-bits, in size. It follows the format MM:MM:MM:SS:SS:SS, where the first 3-bytes are the identification number of the manufacturer and the second 3-bytes are the serial number assigned by the manufacturer. 

Your answer will be D. 

Hope this helped you out! :-)
8 0
3 years ago
Find the length of the base of the following pyramid, given the height of the pyramid is 211 meters and the angle of elevation o
jek_recluse [69]

Answer:

use formula length × width ×height

Step-by-step explanation:

plug in what they have given you

6 0
3 years ago
A programmer plans to develop a new software system. In planning for the operating system that he will​ use, he needs to estimat
Contact [7]

Answer:  a. n= 1068

b. n= 164

Step-by-step explanation:

The formula to find the sample size :

n=p(1-p)(\dfrac{z^{*}}{E})^2

, where p=prior population proportion , z* = critical z-value and E = Margin of error.

Here , let p=proportion of computers that use a new operating system.

Given : Confidence level = 95%

i.e. z* = 1.96  [by z-table]

Margin of error : E = 3% =0.03

a. If p is unknown , then we assume p=0.5

Then, n=(0.5)(1-0.5)(\dfrac{1.96}{0.03})^2=1067.11111\approx1068

i.e. n= 1068

b. p=0.96

Then, n=(0.96)(1-0.96)(\dfrac{1.96}{0.03})^2=163.908266667\approx164

i.e. n= 164.

6 0
3 years ago
Aubree invested $8,300 in an account paying an interest rate of 2.2% compounded quarterly. Assuming no deposits or withdrawals a
Triss [41]

Answer:

$25,735.03

Step-by-step explanation:

I plugged your numbers into the really big formula

7 0
3 years ago
Read 2 more answers
Other questions:
  • 3 Dakota has a mirror in the shape of a trapezoid. She
    12·1 answer
  • Mika and her two best friends are all dressing up as superheroes for Halloween this year. Their costumes are almost ready, but e
    13·1 answer
  • Make x the subject of m=n + x/p
    12·1 answer
  • Find the quotient 5/6 divided by 2
    5·2 answers
  • Leon is buying a bicycle. The regular price of the bicycle is x dollars. The bicycle is on sale for 20% off. He has to pay 5% sa
    8·2 answers
  • Omlll, I'm actually stuck rn xD If anyone can help,i'd appreciate it so much!! Tyssmm!!!!!
    9·2 answers
  • Mae Ling earns a weekly salary of $305 plus a 6.0% commission on sales at a gift shop. How much would she make in a work week if
    8·1 answer
  • Solve the equation and check the solution.
    15·2 answers
  • HELP PLEASE I NEED THIS FOR MY TEST TODAY HELP
    9·2 answers
  • Use the distributive property.<br> 4(5x + 3y - 7) = 20x + 12y + [?]
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!