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A toad climbs the stairs |
2008-01-22 |
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Kate pose la question :
The question is:
A small toad is sitting at the bottom of the stairs. He wants to get to the 10th step, but is having some difficulty. He jumps up 2 steps and then back 1 each time. How many jumps will he take to reach the 10th step?
Stephen La Rocque and Penny Nom lui répond. |
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How many combinations of 8614 are divisible by 7? |
2008-01-22 |
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Rebecca pose la question :
How many combinations of 8614 are divisible by 7 equally (with no remainder)?
Penny Nom lui répond. |
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1/2, 1/2, 3/8, 1/4, 5/32, 3/32, 7/128 |
2008-01-22 |
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Neil pose la question :
Find the next two terms in the following number sequence
1/2, 1/2, 3/8, 1/4, 5/32, 3/32, 7/128
Find a general rule for the nth term of the sequence
Penny Nom lui répond. |
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A regular polygon |
2008-01-22 |
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Andy pose la question :
Hi. i am looking for an equation to find the radius of any given regular polygon, knowing the length of one of it's sides and how many sides it has..
for instance. A pentagon with 10 unit side , a hexagon with a 10 unit side, a septagon with a 10 unit side or tougher still a triangle wit a 10 unit side.
I am mathematically challenged so please try to keep it in layman's terms.
Basically im looking to array rectangles, inside corner to inside corner around a common center. The rectangle's widths change but are always equal/ uniform among one array.
Im not looking for the answer but am looking for the formula.
Thanx in advance,
Andy
Stephen La Rocque lui répond. |
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The cosine of an angle |
2008-01-21 |
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Kristine pose la question :
Find measure of unknown side
cosA=0.5
Harley Weston lui répond. |
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The three angles of a triangle |
2008-01-21 |
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val pose la question :
two angle in a triangle equal 120 degree. what is the measure of the third angle?
Penny Nom lui répond. |
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The equation of a line |
2008-01-20 |
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Sara pose la question :
The question is:
Write the equation of a line that is parallel to y=3x-2 through the point (-5,9).
I think the correct equation for this is y=3x+24.
But I have to write it in standard form, and I can't seem to figure out how to do that. Please answer soon! Thanks!
Stephen La Rocque and Penny Nom lui répond. |
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The line through (-22 ;-1) and (-23, -2) |
2008-01-20 |
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Zachery pose la question :
i have a slope that equals 1/1 and my coordinates are (-22;-1) and (-23;-2) and i am trying to change it into the equation y=mx+b and the farthest that i've gotten is y=1x_ (i can not find out how to find b.) So i was wondering if you could help me find out what b is because i have got no clue!!!!!
Penny Nom lui répond. |
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Choosing 6 numbers from 42 |
2008-01-19 |
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Marcus pose la question :
If i have 42 numbers to choose from and i could only choose 6 numbers at a time without choosing the same number twice in the same row, how many possibilities are there?
Penny Nom lui répond. |
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calcul des hh,mn,sec |
2008-01-19 |
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gillot pose la question :
bonjour, mon fils à des additions et soustractions d'horaire et je n'arrive pas à trouver
la règle pour lui espliquer comment il faut faire
il y a t il une formule pour les additions et soustractions
merci par avance pour vos réponses
Claude Tardif lui répond. |
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Choosing 10 numbers from 40 numbers |
2008-01-18 |
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Antwan pose la question :
I have 40 numbers........number 1-40.
I want to know how many times i can chose 10 of those numbers without picking the same exact sequence twice if its even possible?
Stephen La Rocque lui répond. |
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Two circles in a rectangle |
2008-01-18 |
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Alex pose la question :
One side of a rectangle is 10 and the other is x.
Two circles with equal radii are inscribed in the rectangle and like a Venn Diagram, the circles overlap.
Each circle touches the top and bottom of the rectangle and the left circle touches the left side of the rectangle and the right circle touches the right side of the triangle.
The distance between the centre of each circle is 2x/3.
Find x
Penny Nom lui répond. |
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Maximize income |
2008-01-18 |
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Chris pose la question :
Lemon Motors have been selling an average of 60 new cars per month at
$800 over the factory price. They are considering an increase in this
markup. A marketing survey indicates that for every $20 increase, they
will sell 1 less car per month. What should their new markup be in order
to maximize income?
Stephen La Rocque and Harley Weston lui répond. |
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A word problem |
2008-01-18 |
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Marouf pose la question :
How can you make a word problem for 6 2/3 and solve the word problem? I'm having trouble. Please help
Stephen La Rocque lui répond. |
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Two bikers race on a circular track |
2008-01-17 |
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Abby pose la question :
Two bikers race on a circular track. Biker A can circle the track in 8 minutes, and Biker B can circle the track in 6 minutes. From the start of the race, how many minutes will it be before Biker B overtakes Biker A?
Stephen La Rocque and Penny Nom lui répond. |
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