 |
|
|
|
|
|
|
|
|
A trig expression |
2014-03-31 |
|
Al pose la question :
the question is Find the value of sq rt 1-cos40/
1+cos40( that is the square root of the numerator and denominator)
I can't see what the question is about or even less an obvious answer Can anybody help?
Chris Fisher lui répond. |
|
|
|
|
|
|
Golf with 20 players and one compulsory bye |
2014-03-31 |
|
Wayne pose la question :
I'm trying to run an event with 20 players, I would like if at all possible to limit amount of people playing repetitively together. (Mix it up and play with different people). Here's the conditions. I want groups of 4 over 5 rounds. On each round I want 4 players to drop out and have a bye (to help run the game) but I dont want them helping a group they've played in if I can help it. Is this possible ?
Victoria West lui répond. |
|
|
|
|
|
|
The Pythagorean Theorem |
2014-03-30 |
|
brenae pose la question :
The Pythagorean Theorem, what is it?
Penny Nom lui répond. |
|
|
|
|
|
|
A schedule for 6 people |
2014-03-29 |
|
John pose la question :
How do I set up a schedule where six people are here for ten of twenty days.
Arranged in rotating groups of three, so everyone works with everyone else.
Everyone works with everyone else at least once and everyone works ten days.
Victoria West lui répond. |
|
|
|
|
|
|
Graphing piecewise functions |
2014-03-29 |
|
Rayven pose la question :
Hi! I'm in eighth grade, taking ninth grade algebra 1. I'm confused as to how to
graph piecewise functions. I know that you have already answered a question similar to this
(I did my research first) but it didn't completely help me on my homework. I have to graph
piecewise functions for the specified domains, and create a table for the absolute values.
I know that two bars around a number means absolute value (two bars around -2 makes it +2)
, but how do I graph and chart the absolute value for the following:
f(x)= |x+3 | for -5≤x≤3
And then graph and chart: (on a separate graph):
f(x)= {x if x≤0
{x+1 if x <0
thank you!
~Rayven
Penny Nom lui répond. |
|
|
|
|
|
|
A cyclic quadrilateral |
2014-03-28 |
|
Carly pose la question :
Suppose ABCD is a cyclic quadrilateral, i.e A, B, C, and D are the points on a circle,
given in order going around the circle. Show that if we join each of A, B, C, and D to the orthocentre
of the triangle formed by the other three, then the resulting line segments all intersect in a common midpoint.
Thank you.
Chris Fisher lui répond. |
|
|
|
|
|
|
Curvature of the Earth |
2014-03-28 |
|
Max pose la question :
Recently I read the answer to a question proposed by someone on this site.
The question : What is the rate of curvature per mile on Earth?
The answer given : Use Pythagoras' Theorem to solve for the answer, given a 1 mile side
and a side as the radius. The hypotenuse minus the radius is your answer of drop/mile or curve/mile.
My conjecture : Why go through all of that work if the distance is one? Something like
{1/diameter} would would fine for such a problem. Seems like a lot of work for no reason.
I understand the practical application of Pythagoras' Theorem in this certain situation, as you would need
to use a^2+b^2=c^2 for any distance greater than one [mile]..
It just seems excessive and unnecessary if you're solving for curve / one mile.
Robert Dawson lui répond. |
|
|
|
|
|
|
Percentage increase of the population of a town |
2014-03-28 |
|
hunter pose la question :
The population of a certain town in 1984 was 2900 people. The percent increase was 2.5% each year. What is the town's population in 2002?
Penny Nom lui répond. |
|
|
|
|
|
|
12 golfers, 6 rounds |
2014-03-27 |
|
Bill pose la question :
I have a group of 12 golfers playing 6 rounds of golf. I am
looking for a pairings schedule that allows each golfer to play
at least one round in a foursome with each of the other eleven
players.
Can you provide me with a solution?
Victoria West lui répond. |
|
|
|
|
|
|
A table of values |
2014-03-27 |
|
Marisol pose la question :
A table value X 0,1,2,3,4,5,6 and Y 3,7,11,15,19,23,27 . what relationship of X to Y is represent by which equation? A . y= 4x. B y =x+3 . C y =4x+3 or . D y =4x-3
Penny Nom lui répond. |
|
|
|
|
|
|
12 golfers, 24 weeks |
2014-03-27 |
|
George pose la question :
I have 12 golfers and want to set up a season schedule that will avoid duplication of playing partners as much as possible. The saeson is 24 weeks long. Do you have a formula?
Victoria West lui répond. |
|
|
|
|
|
|
An inequality |
2014-03-27 |
|
James pose la question :
a step on a stairway is at least 8 inches high. write and solve an inequality to represent the maximum number of steps between floors that are 10 feet apart
Penny Nom lui répond. |
|
|
|
|
|
|
13 golfers in groupings of 4, 3, 3 and 3 |
2014-03-26 |
|
Lennart pose la question :
How can I organise 13 players playing in groupings of 4,3,3,3 for 3 rounds of golf in a way that all play with all others but a minimum of times with the same players(?)If possible, nobody should play in the 4 ball more than once. I would be grateful for an answer/proposal! Thank you, LR
Victoria West lui répond. |
|
|
|
|
|
|
A word problem with fractions |
2014-03-26 |
|
lois pose la question :
a man has a stack of boards, he cuts 3/5 off each board, after he cuts the boards he finds he has enough pieces left to make 4 boards the length of the original boards. how many boards did he start with.
Penny Nom lui répond. |
|
|
|
|
|
|
Justin and his father went fishing |
2014-03-26 |
|
Confused pose la question :
Justin and his father went fishing and together caught 12 fish.
Three times the number of fish that Justin caught exceeds 12 by
as much as 5 times the number that his father caught exceeds 8.
How many fish did each catch?
Harley Weston lui répond. |
|
|
