Miembros: nicthemathwiz

17 Questions
4 Answers

779

+65

Let n be a positive integer. (a) Prove that by counting the number of ordered triples of positive integers, where in

Let n be a positive integer.
(a) Prove that
by counting the number of ordered triples of positive integers, where in two different ways.
(b) Prove that
by counting the number of subsets of containing lee mas ..

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nicthemathwiz 29 ago 2020

457

+65

PLZ HELP ASAP!!!!!

The fifth term of an arithmetic sequence is 9 and the 32nd term is -84. What is the 23rd term?

BTW the answer is not 40

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nicthemathwiz 27 jul 2020

545

+65

HELP QUICK PLEASE

There are ten people in the Baking Club, including Mark. They choose 3 people to form an executive committee.
How many possible committees could be formed that include Mark?

BTW the answer is not 119, 121, 45, 120, 84 lee mas ..

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nicthemathwiz 21 jul 2020

527

+65

PLZ ANSWER NOW/SOON!!!!!

Marvin the fly starts at (0,0) Each step, Marvin moves one unit right or one unit up. He is trying to get to the point (5,7). However, at (4,3) there is a frog that will eat him if he goes through that point. In how many ways can Marvin reach (5,7)? lee mas ..

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nicthemathwiz 21 jul 2020

481

+65

PLZ HELP NOW/SOON!!!!!

How many ways can you distribute 4 different balls among 4 different boxes?

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nicthemathwiz 21 jul 2020

469

+65

PLZ HELP QUICKLY!!! NEED ANSWER QUICK!!!

1. A standard six-sided die is rolled 6 times. You are told that among the rolls, there was one 1 two 2's, and three 3's. How many possible sequences of rolls could there have been? (For example, 3,2,3,1,3,2 is one possible sequence.)
lee mas ..

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nicthemathwiz 14 jul 2020

1467

+65

HELP!!!!!

1. If $a \star b = 2a + 3b $ for all a and b, then what is the value of $4 \star 3$?

2. Define $\#N$ by the formula $\#N = .5(N)+1$. Calculate $\#(\#(\#50))$.
lee mas ..

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nicthemathwiz 13 jul 2020

923

+65

PLZ HELP QUICKLY!!! NEED ANSWER ASAP!!!

What is the least number of colors needed to shade the tessellation shown, such that no two tiles sharing a side are the same color?
lee mas ..

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nicthemathwiz 11 jul 2020

824

+65

URGENT PLZ HELP

1. In an orchestra, 60% of the musicians play string instruments, and the remainder play woodwind, brass, or percussion instruments. If the orchestra has 130 members, how many musicians do not play string instruments?

2. How many lee mas ..

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nicthemathwiz 10 jul 2020

463

+65

URGENT

A pet store has 15 puppies, 6 kittens, and 8 hamsters. Alice, Bob, and Charlie each want to buy a pet. For variety, they each want a different kind of pet. How many ways can Alice, Bob, and Charlie buy pets and leave the store satisfied?

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nicthemathwiz 10 jul 2020

817

+65

The product of the digits of 3214 is 24. How many distinct four-digit positive integers are such that the product of their digits equals 12?

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nicthemathwiz 10 jul 2020

540

+65

PLZ HELP ASAP

The product of the digits of 3214 is 24. How many distinct four-digit positive integers are such that the product of their digits equals 12?

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nicthemathwiz 10 jul 2020

1206

+65

PLZ HELP QUICKLY~~~~~

How many rectangles are in this figure? Each angle is a right angle.
Image link: https://latex.artofproblemsolving.com/0/f/6/0f6604d3dfb00ffae2e94c03010845b7509a2186.png

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nicthemathwiz 9 jul 2020

947

+65

PLZ HELP QUICKLY!!!

The five-digit number 246n8 is divisible by 9. What is the digit n?

BTW the answer is not 2.

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nicthemathwiz 1 jul 2020

814

+65

PLZ HELP ASAP!!! URGENT!!!

I have 5 different mathematics textbooks and 4 different psychology textbooks. In how many ways can I place the 9 textbooks on a bookshelf, in a row, if there must be a psychology textbook in the middle, and there must be a mathematics textbook at each lee mas ..

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nicthemathwiz 30 jun 2020

+65

Sorry but that answer is incorrect!

nicthemathwiz22 jul 2020

+65

ANYONE HERE??? ANYONE GONNA ANSWER ME???

(Sorry if i'm sounding rude but I need the answer in 5 min or less.

nicthemathwiz21 jul 2020

+65

That isn't right... It is 4 possibiities for each ball so $4^4=256$

nicthemathwiz21 jul 2020

+65

Oh... I didn't read the question right...

nicthemathwiz11 jul 2020

Nombre de usuario	nicthemathwiz
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