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The sides of a 5-pointed star inscribed in a circle 2021-09-18
Scott pose la question :
Is there a calculation for the length of each side of a five-pointed star? I am not worried about area but if I have a circle with a 7.5 foot radius and place a star inside it, how can I measure the lines creating the star?
Harley Weston lui répond.
Five coins 2017-11-10
Allan pose la question :
I have five coins..a penny,a nickle,a dime,a quarter and a loonie.....how many different amounts of money could i pay using ny combination of this coins
Penny Nom lui répond.
Five bales 2017-10-08
John pose la question :

two answers were given... I believe both to be incorrect.
five bales weighed two at a time: weightx2 given: 110,112,113,114,115,116,117,118,120, and 121. It stated all combinations ie: ab,ac,ad,ad,bc,bd,be, etc. to arrive at the above 10 combined weights. I come up with the following...

Bale A= 54lbs, Bale B=56, Bale C=58, Bale D=59. and Bale E=62 pounds.

A+B=110, A+C=112, A+D=, B+C=114, B+D=115 ,A+E=116 ,C+D=117, B+E=118 ,C+E=120, and D+E=121


Penny Nom lui répond.
Five equations 2017-01-16
Muhammed pose la question :
A x 4 = E
B ÷ 4 = E
C + 4 = E
D - 4 = E
___________
& A + B + C + D = 100
what is the value of E

Penny Nom lui répond.
A five digit number 2016-10-12
Massa pose la question :
Explain why any four digit number is less than any five digit number?
Penny Nom lui répond.
Subtraction base 5 2015-08-29
nakita pose la question :
can u explain the quinary subtraction ...
(3000) -(2342) all the numbers are in quinary number system

Penny Nom lui répond.
Five cubes 2014-01-15
Bob pose la question :
Rick has five cubes. When he arranges them from smallest to largest, the difference between the heights of any two neighbouring cubes is 2 cm. The largest cube is as high as a tower built from the two smallest cubes. How high is a tower built from all five cubes?
Penny Nom lui répond.
Five players in a 4-player partnership game 2013-03-19
Dee pose la question :
I have 5 players who are playing in a 4-player partnership game & want to rotate the 5th person in in such a way that each person is each other person's partner for a game. How can such a rotation be done?
Penny Nom lui répond.
A 5 pointed star in a circle 2012-08-05
wiljohn pose la question :
find the area of a 5 pointed star in the circle with a radius of 12.517
Chris Fisher lui répond.
15 golfers 3 rounds fivesomes 2009-12-23
Dewey pose la question :
I have 15 golfers playing 3 rounds of golf. We will be playing in fivesomes. Any formula that has everyone playing with a different person each round?

Thank you. Dewey

Robert Dawson lui répond.
Fencing five acres 2009-07-31
Aaron pose la question :
Ok So I need to order fencing for my property I have 5 acres and would like to fence in the perimeter, I cant for the life of me figure out how many feet of fencing to order for help please im an idiot.
Robert Dawson lui répond.
Five digit combinations 2008-02-15
Debbie pose la question :
I would like to get a list of all the possible 5 digit combinations of the numbers 12345.
Penny Nom lui répond.
A sixfold increase 2007-10-24
Fred pose la question :
If I have $500 and it grew to $3,000, what is the correct description of the increase? Is it a sixfold increase (sextupled), or a fivefold increase (quintupled)? When I divide $3,000 by $500, the result is six, therefore, a sixfold increase?
Stephen La Rocque lui répond.
Show that there is no five-digit number which 2007-10-04
Greg pose la question :
show that there is no five-digit number which uses each of the digits 1,2,3,4,5 such that the numbers formed by the first digit is divisible by 1, by the first two digits is divisible by 2 by the first three digits is divisible by 3, by the first four digits is divisible by 4, by the first five digits is divisible by 5
Stephen La Rocque, Claude Tradif and Victoria West lui répond.
A square contains five circles with the same radius. 2007-04-21
Jamie pose la question :
A square has a side length on 1 m. The square contains five circles with the same radius. The centre of one circle is at the centre of the square and it touches the other four circles. Each of the other four circles touches two sides of the square and the center circle. Find the radius.
Penny Nom lui répond.
Area of a five-pointed star 2007-03-05
Ashley pose la question :
What is the area of a five pointed star inscribed in a circle with a radius of 10cm?
Stephen La Rocque lui répond.
Half of five 2004-12-26
Pauline pose la question :
Why is four half of Five? Hint: It's the middle half?
Penny Nom lui répond.
A five digit number 2004-10-06
A parent pose la question :
What is the 5 digit number in which the first 2 digits are the square of the 3rd digit and the last 2 digits are the square of the digit that is one less than the third digit? The sum of all the digits is 22.
Penny Nom lui répond.
Arithmetic in bases other than 10 2003-10-22
Kim pose la question :
how do you add, subtract, multiply and devide in base 3, base 5, etc?
Penny Nom lui répond.
Converting from base 10 to base 5 2003-09-10
Susy pose la question :

My son, who is 9 in grade 5 has been asked to convert base 10 numerals into base 5.

His first question of:

24(10) he has calculated to be 4x5 + 4x1 = 44 (5)

The next question however is the tricky one.Ý We know the answer is supposed to be 100 but we find it difficult to get this in the way he understands it.

25 (10) = _________________ 100 (5)

Can you help us figure out how we reach the answer.


Claude Tardif and Penny Nom lui répond.
Polynomials degree 4 and bigger 2003-06-26
Stephen pose la question :

How do I show kids how to find all the zeros for polynomials degree 4 and bigger.

For examples:
r(x) = x5-11x3-7x2+77 = (x2-11)(x3-7) and s(x) = x4-121 = (x2-11)(x2+11)

Also am I correct when I say that the following are irreducible?

f(x) = x2-11
g(x) = x3-7
h(x) = x4-5


Harley Weston lui répond.
5 to the power n 2003-05-28
Sam pose la question :
What is the integer n for which

5 to the n power + 5 to the n power + 5 to the n power + 5 to the n power + 5 to the n power = 5 to the 25th power?

Penny Nom lui répond.
Numbers in base 5 2003-02-16
Lori pose la question :
I'm trying to help my 6th grader with converting numbers like 82 to base 5 and 182 to base 12. We saw your examples on 613, but still are confused.
Penny Nom lui répond.
Base 5 numbers 2002-09-13
Vera pose la question :
? how do you change a base 10 number to base 5
Penny Nom lui répond.
Some 5 card hands 2002-03-28
A student pose la question :
From a standard deck of cards how many 5 card hands are possible consisting of a. exactly 4 hearts

b. two cards of one kind and three of another(like a full house).

Penny Nom lui répond.
A degree 5 polynomial 2002-02-17
Carla pose la question :
Write an equation for a polynomial of degree 5 given the following zeros:
-7+3i, -2+sqrt(13), 6

Penny Nom lui répond.
A 3 dimensional 5 pointed star 2001-11-08
Kent pose la question :
I am looking for a formula that will give me a layout for a 3 dimensional 5 pointed star. I want to form it out of sheet metal, using 5 polygons and soldering them at the apex. Can you please help me with this? I would like to be able to give the formula the height of the star from the bottom two points to the top point and also how deep the star is. Thank you very much!
Judi McDonald lui répond.
A polygon with five sides 2001-10-03
A student pose la question :
I was asked a question in 5th grade today that goes: i am a polygon with five sides and 2 right angles what do i look like and what is my name
Penny Nom lui répond.
1:5 2001-09-27
Sandy pose la question :
A colleague and I have a disagreement about dilutions. I seem to remember that I was taught (although it was a long time ago) that a RATIO was written thusly: 1:5 , and read " one part to five parts", for a total of 6 parts. On the other hand, a fraction is written: 1/5 and is read" one part in five" for a total of 5 parts. My colleague says that the ratio reads "one part in five" and is essentially the same as a fraction. Which is right? Have I been doing dilutions wrong all this time? I teach Animal Nursing and need to know where I can find a consise answer to such questions for making up medicated fluids, etc.
Penny Nom lui répond.
Five 2001-04-21
Billie pose la question :
If One is single, two is twin, three is triple, four is quadruple, five is ????? what is five and where would I find the rest of the numbers,six, seven, eight, nine, etc.
Penny Nom lui répond.
Five fourths 2001-04-08
Linda pose la question :
Can you have 5/4 of something?
Penny Nom lui répond.
Five digit palindromes 2000-11-12
Jacky pose la question :
Positive integers such as 1287821 and 4554, in which the number is unchanged when the digits are reversed, are called palindromes. The number of five-digit integers larger than or equal to 10,000 which are not palindromes is... a. 10 000 b. 81 000 c. 89100 d. 90 000 e. 99 100
Penny Mom lui répond.
Five Factors 1998-09-19
Derek Yau pose la question :
To whom it may concern,

I have difficulty in getting the solution to the following question:

Find 5 numbers that have exactly 5 factors.

I got 16, 81 but couldn't find the rest. I believe that in order to have 5 factors, it has to be a square number. Isn't it true? I guess there may be a pattern to this.

Thanks for your help.
Derek Yau.
Penny Nom lui répond.

 
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