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seropon [69]
3 years ago
10

Using the 0,1,6,8, and 9, write down all the possible three-digit numbers that have rotational symmetry. the digits can be used

more then once
Mathematics
1 answer:
Hunter-Best [27]3 years ago
4 0

Assuming 1 is written rotationally symmetrical, using 0,1,6,8,9 to make numbers that have a degree of symmetry of 2 (i.e. 180 degrees), we can say

one digit numbers: 0,1,8


two digit numbers: 11, 69, 96

(18 becomes 81, so not admissible, similarly for 19, 91,16,61, etc)

(00 is not considered generally as a two-digit number)


three digit numbers:

(000, 010, 080 are not considered generally as a three-digit number)

101, 609, 808, 906,

replace the middle digit successively by 1 and 8 gives

111, 619, 818, 916,

181, 689, 888, 986

for a total of 12 numbers

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Quick algebra 1 assignment for some points and brainliest!
Juli2301 [7.4K]

1. The 100 prisoner experiment: 100 prisoners are about to be executed (you can use paper stick figures to model 100 prisoners, or you can do about 10), but the warden has agreed to allow all prisoners to be commuted to a 6-month sentence if they can pass one game. The game states that 100 pieces of paper with each of the prisoner's numbers are to be randomly shuffled into boxes that have random prisoner's numbers (where the number on the paper does not match the number on the boxes.) Each prisoner is allowed to open 50 boxes to find their number such that they have a \frac{1}{2} chance of finding their number. If you find your number, you are cleared to another room to wait. If you don't, then you've messed up huge. If even one prisoner does not find their number, all the prisoners die. If all of the prisoners find their numbers, they all get 6-month sentences instead. The chance of all the prisoners randomly finding their numbers is (\frac{1}{2})^{100}, which is about a 0.0000000000000000000000000000008% chance. 30 zeros after the decimal placement. For reference, two people have a better chance of picking up the same grain of sand from any of the beaches in the world than finding their numbers randomly.

The Vickrey Auction can be modeled into an experiment by testing people's psychological thinking. You can do this with any of your friends. In a Vickrey auction, you put your bids into a closed letter. For an item, the highest bidder wins the auction, but does not pay what he or she put their bid under in the auction, but rather pays what the second bidder had bidded. It teaches people to be more honest, because if you bid the highest and win, you pay the second-highest bidder's payment, which could also be almost equally as high and could cost you a fortune for an undervalued item.

Another great experiment you can do is to measure the different unsynchronizations of analog clocks that are not close together. Scientists have measured atomic clocks that are just a millimeter apart that start ticking in different measures.

2. I select the 100-prisoner experiment.

3. A curved graph like -x^2 would fit perfectly.

4. A quadratic function would fit my experiment the best. The best graph to use would be y = -x^2. An equation with a large curve would be the best for this type of experiment to graph success and failure. More than three quarters of my graph wouls be full of failure and maybe a little more than 10% would be full of success if repeated over 100,000 times. I am not too sure though.

4 0
1 year ago
Select True or False.
Lyrx [107]

The expression is False the correct answer would be: −x+12

3 0
3 years ago
Read 2 more answers
The graph of f(x)=x^2 is shown.
Alex17521 [72]

Answer:

Step-by-step explanation:

dude its not that hard

5 0
4 years ago
A campus deli serves 300 customers over its busy lunch period from 11:30 a.m. to 1:30 p.m. A quick count of the number of custom
NeX [460]

Answer:

4 minutes

Step-by-step explanation:

There are two hours from 11:30 a.m. to 1:30 p.m

The hourly rate of service is:

r=\frac{300}{2}=150\ customers/hour

If the average number of customers in the system (n) is 10, the time that a customer spends in process is given by:

t=\frac{n}{r} =\frac{10}{150}=0.06667\ hours

Converting it to minutes:

t= 0.066667\ hours*\frac{60\ minutes}{1\ hour}\\t=4\ minutes

A customer spends, on average, 4 minutes in process.

7 0
4 years ago
Can anyone help with fine answer for this question?
Reika [66]

Answer:

domain: all real numbers

range: y≥0

Step-by-step explanation:

This graph includes all real numbers for values of x (the domain), but only includes 0 and above for the y values (the range)

Hope this helps :)

5 0
3 years ago
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