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What happens when you have zero's on both sides? |
2007-06-05 |
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From Lily:
On the substitution method what happens when you have zero's on both
sides of the equation? Is that considered no solution or infinitely many?
Answered by Stephen La Rocque and Penny Nom. |
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Finding the area of a lot without knowing the angles |
2007-06-05 |
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From Cristin:
I have a land-locked piece of land. I need to know the square
footage in order to determine the acreage. My deed only gives the lengths of its five sides.
Answered by Stephen La Rocque. |
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A circle and polygon with equal perimeters |
2007-06-05 |
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From matthew:
Why does a circle have the largest area of any polygon when the perimeter is always 1000m for every polygon?
Answered by Stephen La Rocque and Penny Nom. |
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What angle does the tire turn in 60s? |
2007-06-04 |
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From San:
An automobile, travelling at 80km/h, is towing a trailer. The wheels of the trailer
are 40cm in diameter. Through what angle does the tire turn in 60second?
Answered by Stephen La Rocque. |
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A flagpole and a telescope |
2007-06-04 |
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From Fabiola:
A telescope is mounted on a tripod 5 ft above the ground and 20 ft from a
flagpole. The telescope must be rotated 48° from horizontal to see the top
of the flagpole. How tall is the flagpole?
Answered by Stephen La Rocque. |
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Algebra - find the number |
2007-06-04 |
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From Fabiola:
When 4 times a number is increased by 40, the answer is the same as
when100 is decreased by a number. Find the number
Answered by Stephen La Rocque. |
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A regular octagon is made up of 8 identical isosceles triangles |
2007-06-04 |
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From Alex:
A regular octagon is made up of 8 identical isosceles triangles. If the perimeterof each isosceles triangle and the hexagon are 58 cm and 168 com respectively, find the length of the identical sides of the triangle.
Answered by Stephen La Rocque. |
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Volume of a brewer's sphere |
2007-06-04 |
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From Edward:
A Brewer's Sphere that has a 9' Dia. Holds how much Brew? How many 40oz bottles will be needed to hold his batch of Brew?
Answered by Stephen La Rocque. |
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How many faces does a triangle have? |
2007-06-04 |
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From Daniela:
how many faces does a triangle have?
Answered by Stephen La Rocque. |
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Deux terrains |
2007-06-04 |
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From Aurelie:
Deux terrains, un rectangulaire et l'autre carré, ont la même superficie.
Si tu sais que la longueur du terrain rectangulaire mesure 40m et que le carré mesure 20m de côté, détermine la largeur du terrain rectangulaire.
Answered by Claude Tardiff. |
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A species of beetle has a 3yr life span |
2007-06-03 |
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From Gilligan:
A species of beetle has a 3yr life span. Half the females in their first year
will survive into the second year the rate from second to 3rd year is 1/3. Each female breeds in the 3rd year of life, producing 6 females and 1 male. No females survive beyond the 3rd year.
Let xsub1,xsub2,xsub3 denote the number of females in the 1st, 2nd and 3rd year.
(a) What will be the number of females in the 1st, 2nd and 3rd years of life next year?
(b)Show that the numbers in each group will return to the same values every 3 years?
(c) Given a total of 3600 beetles, over the 3 age groups, calculate the number in each group?
Answered by Penny Nom. |
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How fast was he going? |
2007-06-03 |
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From Mary:
if a motorcycle left a 63 foot skid mark before hitting a car how fast was he going ?
Answered by Penny Nom. |
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Equation of a line |
2007-06-03 |
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From Mahrukh:
Hi i would like to know how to find the equation of a line, when you are given a piont (3, -1) and the x intercept which is -1?
Answered by Penny Nom. |
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A machine depreciates by 20% each year |
2007-06-03 |
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From katie:
the value of a machine depreciates by 20% each year.
How would i find what single decimal number to multiple the original value by to find its value after 2 years?
Answered by Penny Nom. |
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The difference between two dice |
2007-06-02 |
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From smiley:
Two standards dice are rolled. Determine the probability
that the difference between the two numbers on the dice is 2
Answered by Penny Nom. |
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