Ask Math Anything Topics from April 2020

debbie

4/7/20

debbie

4/8/20

debbie

4/9/20

debbie

4/10/20

Can you say a math joke?
Why is math either too hard or too easy?
Do you have an AoPS account?
What did you do in your free time before coronavirus?
The missing dollar trick
Which is harder, AMC or MATHCOUNTS?
Which website should I use for math?
What are different types of classes and which do you prefer?
Does \( \sum_{n =1}^{\infty} \frac{k}{1 + k^2} \) converge? If so, then to what value?
Does \( \sum \frac{1}{n^2}\) converge?
How many different iPhone passwords are possible?
Why is a 2-digit password not so good?
Show that \( p^2 -1\) is factorable by \(24\) if \(p \geq 5\)

debbie

Sat 4/11/20 Live stream topics

debbie

4/18/20

debbie

Mon 4/20/20

Simple derivatives using the example of the sequence \(2, 10, 30, 68, 130 \text{ } (2n^2 + n)\)
How to find a formula besides finding a pattern
How much gas does it take to go around the F1 2019 track once
How are cereal boxes made?
What does bluetooth have to do with math?
How to use Prof. Loh's dice against your friends
How to protect computers from coronavirus
Which digit is more important, 1 or 0?
How is math used in sports?
What is \(\sqrt{6 \sqrt{ 6 \sqrt{ 6 \sqrt{6 \ldots }}}} \) ?
What is the square root of \(i?\)

debbie

Tue 4/21/20 Live stream topics

Prove why time multiplied by speed equals distance
Bob the unpredictable cat walks on a 1 mile racetrack at 1 mph. Is it possible to calculate how long it will take him to do 1 lap?
Converting units
Standard deviation and calculating the spread of the normal hump ( \( \sqrt{n \times 0.5 \times 0.5}\))
Cube root of \(i\)
Are there any math tournaments or shows that you recommend?
What is the probability that a coin will land on its side?
Why is the economy going down?
If every person that each of us told someone about this livestream, and each of those people tell one person, and each of those people tell one person, and so on, how many people should each of us tell in order to get 10,000 people here?
If the IMO questions are getting harder gradually throughout the years do you think that the value/weight of an older IMO medal is less?
Where are you filming this stream from?
Are you lonely?

debbie

Wed 4/22/20 Live stream topics

Is there a strategy for rock paper scissors, or is it just a random game?
Who is the smartest person in the world?
What is the most mathematical board game?
Which square in Monopoly is the most commonly landed on?
How is a random number generator really random?
Strategy for winning tic-tac-toe
Solve \( \sqrt{-x} = -1 \)
How to win money on the lottery
Prove that \( \pi = 4 \) using Minecraft / pixel art analogy
How do real-time games sync so well, even when a player(s) have high ping, and are far away? Why do movies take so much longer to load in comparison?
How does a computer program synchronize time?

debbie

Thu 4/23/20 Live stream topics

debbie

Mon 4/27/20 Live stream topics

Hex codes and binary
\(15\) in base \(2\)
\(10110110 \times 2\) in binary
Sound waves are stored in a 16-bit format
What's the largest 16-bit integer? (15 ones, \( 11111 11111 11111 = 2^{15} - 1\)
How much money is there in the world?
How can I not get glasses even though I'm staring at a screen every day?
How can you use math to aim in a game?
How to get an isosceles triangle (if projectile is the same speed as the runner)
Circle of Apollonius
Why is airplane food so bad?
Which temperature is the same whether it's in celsius or fahrenheit?
How common is my birthday?

debbie

Tue 4/28/20 Live stream topics

A game where two people take turns choosing numbers. The first person to get three of their numbers adding to 15 wins
Does coding help with math?
Finding the area of a nautilus shell using Fibonacci numbers
How many prime numbers are there from 0 to your age?
How can you figure out how many prime numbers there are between 2 and 2500 in a fast way?
Ramanujan's numbers, and the sum of two cubes in two ways
Sieve of Erastothenes
Do you believe that the UFO sighted by Air Force fighters is real?
If one stays in the sky, after 12 hours, can he get to the other side of the world?

debbie

Wed 4/29/20 Live stream topics

debbie

Thu 4/30/20 Live stream topics

How do we know \( \pi\) is real?
How to calculate \( \pi\) using division
If you have a certain number of numbers that add up to a certain number, can you calculate the average biggest number?
Gamma function
Can every 2-D geometry question be solved by 3-D geometry?
Do you believe in aliens?
Suppose that 20% of a number is 17. Find 20% of 17% of the number.
Can something be 1 dimension?
How long would a bumblebee take to travel around the world?
Riddle: There are 3 switches outside for lights in the attic. You may flip the switches and make one trip to the attic. Match each light with its switch.
What's the probability of getting 5 heads and 5 tails if you flip a coin 10 times?
David's parents have three sons: Snap, Crackle and what's the name of the third son?
Good books for AIME preparation
Why are zeroes of functions interesting to study?
If a straight line passes through the curve \(y= x^2,\) why are the two interceptions multiplied together equal to the y-intercept?