Swim2433

19 Questions
9 Answers

0

917

2

+83

Think About it Counting and Prob

An octahedron consists of two square-based pyramids glued together along their square bases to form a polyhedron with eight faces. Imagine an ant that begins at the top vertex and walks to one of the four adjacent vertices that he randomly selects and calls read more ..

Swim2433 Jul 25, 2020

0

887

1

+83

Advanced Probability with Combinations

Forty cards are placed into a box, each bearing a number 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, with each number entered on four cards. Four cards are drawn from the box at random and without replacement. Let $p$ be the probability that all four cards bear the read more ..

Swim2433 Jul 25, 2020

0

876

5

+83

NT problem

What is the probability that the same number will be facing up on each of three standard six-sided dice that are tossed simultaneously? Express your answer as a common fraction.

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Swim2433 Jul 25, 2020

0

1035

8

+83

Remainders problem

Lucy was born on Wednesday, December 1st, 2004. That Wednesday was the first day of her life. Her parents held a party for her on the $1000$th day of her life. On which day of the week was the party?

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Swim2433 Jul 25, 2020

0

1086

2

+83

Super hard NT

On a true-false test of 100 items, every question that is a multiple of 4 is true, and all others are false. If a student marks every item that is a multiple of 3 false and all others true, how many of the 100 items will be correctly answered? read more ..

Swim2433 Jul 25, 2020

0

880

2

+83

INSANE NT PROBLEM

Find the smallest positive integer $N$ with the following property: of the three numbers $N$, $N+1$, and $N+2$, one of them is divisible by $2^2$, one of them is divisible by $3^2$, one is divisible by $5^2$, and one is divisible by $7^2$.

Swim2433 Jul 25, 2020

0

674

2

+83

Hard Probability Problem

A turn consists of rolling a standard die and tossing a fair coin. The game is won when the die shows a 1 or a 6 and the coin shows heads. What is the probability the game will be won before the fourth turn? Express your answer as a common fraction. read more ..

Swim2433 Jul 25, 2020

+2

1027

1

+83

Question

$2\sqrt[3]{2}$ is the sixth root of what positive whole number?

Swim2433 Jul 14, 2020

+2

645

1

+83

Not sure how to solve this

A proposal will make years that end in double zeroes a leap year only if the year leaves a remainder of 200 or 600 when divided by 900. Under this proposal, how many leap years will there be that end in double zeroes between 1996 and 4096?

Swim2433 Jul 14, 2020

+83

0

What's aops??

Edit: uhhh is it? Abstract of Operations System (US Coast Guard)?

Swim2433Jul 27, 2020

+83

0

Thx!

Swim2433Jul 27, 2020

+83

0

Thx!

Swim2433Jul 26, 2020

+83

0

Thx!

Swim2433Jul 26, 2020

+83

0

Sorry, it's incorrect

Swim2433Jul 26, 2020

+83

0

Incorrect

Swim2433Jul 26, 2020

+83

0

It's correct :) thanks so much!

Swim2433Jul 25, 2020

+83

0

It's not Tuesday :(

Swim2433Jul 25, 2020

+83

0

Thank you so so much! :)

Swim2433Jul 25, 2020