All Questions

+12

841

+232

EXTREMELY CHALLENGING

In poker, a pair is formed from two cards of the same rank. A hand with cards is called two pairs if it has two pairs of cards of different ranks, and a fifth card that does not match either pair. (For example, the hand KK338 read more ..

CPhill ●●

ramenmaster28 Jan 3, 2020

2928

How much money will Kiersten’s online business earn this month?

Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of \$10$10dollar sign, 10 from each of the subscribers to her website. Last month, the website had 100100100 subscribers. This month, 303030 new read more ..

●●

Guest Jan 3, 2020

822

+773

Simplify 3x(5x^4)^2?

●

whymenotsmart Jan 3, 2020

475

help

Find the number of ways of taking 10 people and dividing them into 5 pairs.

●

Guest Jan 3, 2020

Jan 2, 2020

3126

+17

~I tried~

A new shopping mall records 120 total shoppers on their first day of business.
Each day after that, the number of shoppers is 10% more than the number of shoppers the day before.
What is the total number of shoppers that visited read more ..

●●●●●●●●

JiminBang Jan 2, 2020

859

I cannot find the correct answer

Triangle ABC has Altitudes AD, BE and CF. If AD = 12, BE = 14 and CF is a positive integer, then find the largest possible value of CF.
So far, I only found
(14*c)/2 = (12*b)/2 = (CF*a)/2
c+b > a read more ..

●●●●

Guest Jan 2, 2020

1458

+1713

Hi!!! I'm Back~

I was just doing random math problems-like you do, and I stumbled upon this one...

The sum of the first 6 terms of a geometric series is 15,624 and the common ratio is 5. read more ..

●

tommarvoloriddle Jan 2, 2020

697

help

The sum of the squares of three consecutive positive integers is 29. Find the sum of the three integers.

●

Guest Jan 2, 2020

1537

help

For how many positive integers $n\geq 2$ is $1001_n$ a prime number?

●●●●

Guest Jan 2, 2020

920

+394

Number Problem

Let

be made by combining the first 2020 positive integers. Find the thousandth digit in this sequence read more ..

●●●

hellospeedmind Jan 2, 2020

1300

+239

Please help asap

Five people are passing a ball amongst themselves. The ball starts with Alonzo. Each person who has the ball passes it onto someone else. After the eighth pass, the ball returns to Alonzo. Find the number of possible sequences of passes.
read more ..

●●●●

Rollingblade Jan 2, 2020

730

help

The red figure at the right is made of two hemispheres of equal radius. The blue cylinder at the left has the same radius and height as the red figure.
Which shape has a larger surface area?

read more ..

●●

Guest Jan 2, 2020

778

Solve for :

●●

Guest Jan 2, 2020

463

help

Find the greatest common divisor of 886! + 1 and 887!.

●●

Guest Jan 2, 2020

486

help

150 workers were engaged to finish a piece of work in a certain number of days. Four workers dropped the second day, four more workers dropped the third day and so on. It takes 8 more days to finish the work now. Find the number of days in which the work read more ..

●●

Guest Jan 2, 2020

797

what is 1.37 to the power of 1/5

to the power of 1/5
Actually I am trying to find the grwoth rate for 5 years where the total gain is 100/73?

●●

Guest Jan 2, 2020

1435

+239

Regular hexagon $ABCDEF$ is the base of the right pyramid $PABCDEF.$ If $PAD$ is an equilateral triangle with side length 6, then what is th

Regular hexagon ABCDEF is the base of the right pyramid PABCDEF. If PAD is an equilateral triangle with side length 6, then what is the sum of the lengths of the edges of the pyramid?

●●●

Firewolf Jan 2, 2020

804

+262

help):

For all complex numbers z, let
Find .

●●●

atlas9 Jan 2, 2020

951

+394

Polynomial Equation

The equation

has four real roots, Find the value of the sum read more ..

●●●●●●●

hellospeedmind Jan 2, 2020

1131

+262

help!

A particular number written in base 3 requires three digits. When the number is written in base 3 and 4, the digits are the reverse of each other. What is this number expressed in base 10?

●●●

atlas9 Jan 2, 2020

916

help

There are four equilateral triangles shown in the figure. The number within each equilateral triangle represents its area.
What is the area of the yellow triangle?

read more ..

●●●●●

Guest Jan 2, 2020

911

+100

Complex numbers

Determine the complex number z satisfying the equation .

●●●●●●●●

Atroshus Jan 2, 2020

789

help

The circle above has center O and area 9*pi. Triangle ABC is equilateral. Find its area.

●●

Guest Jan 2, 2020

629

Help! Don't know how to deal with this kind of system

For what ordered pair are there infinite solutions to the system

CPhill ●●

Guest Jan 2, 2020

All Questions ⁺⁰237643 Questions

EXTREMELY CHALLENGING

How much money will Kiersten’s online business earn this month?

Simplify 3x(5x^4)^2?

help

~I tried~

I cannot find the correct answer

Hi!!! I'm Back~

help

help

Number Problem

Please help asap

help

Solve for :

help

help

what is 1.37 to the power of 1/5

Regular hexagon $ABCDEF$ is the base of the right pyramid $PABCDEF.$ If $PAD$ is an equilateral triangle with side length 6, then what is th

help):

Polynomial Equation

help!

help

Complex numbers

help

Help! Don't know how to deal with this kind of system

3 Online Users

Top Users

Sticky Topics