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Algebraic EquationsAx+By=C |
2007-07-02 |
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From Juan:
The general "Standard" form of an equation is Ax+By=C.
Re-Write this equation in slope-intercept (y=mx+b) form.
Answered by Harley Weston. |
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Alphanumeric addition |
2007-07-01 |
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From JYOTI:
the letters in the alphanumatic addition are all different. find the numbers indicated in codes. all letters are digits from 0 to 9. SEND+MORE=MONEY.
Answered by Stephen La Rocque. |
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The combintion of a bike lock |
2007-07-01 |
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From Tricia:
I have a bike lock that I know the numbers 3, 6, 8, & 9 are part of the combination, but I can't remember the order. What is the calculation to get all of the possible combinations.
Answered by Stephen La Rocque. |
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A sand base for a pool |
2007-07-01 |
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From Clark:
I am adding sand for a base for a pool. It is 20' round and I would like the sand
to be 2" deep. Can you tell me how many cubic feet that would be?
Thanks!
Answered by Harley Weston. |
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A cylindrical slab of concrete |
2007-06-30 |
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From Kenn:
I have a tank that needs a base of cement put in it. I dont know how to do this. The tank is 8 feet across and I want the cement to be 5 or 6 inches deep. Can you please tell me how much cement I need to do this.
Answered by Harley Weston. |
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The lock code for my phone |
2007-06-30 |
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From Amanda:
okay so i forgot my lock code for my phone its four digits but i know it doesn't have a 1 or a 0 in it so it has to be from numbers 2 to 9 i need to know all the four digit combinations asap cause i cant use my phone till can someone please help me Amanda
Answered by Penny Nom. |
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What is the spacing for spindles? |
2007-06-30 |
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From david:
what is the spacing for spindles? a 12ft railing 17 spindles at 1 5/8in ea
Answered by Harley Weston. |
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If A is 1 and Z is 26 |
2007-06-29 |
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From Sue:
If A is 1 and Z is 26 is there a word that when you multiply all the numbers instead of letters adds up to a million?
Answered by Chris Fisher and Harley Weston. |
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The side of a decagon |
2007-06-29 |
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From Dale:
Mathematically how can you calculate the distance of each side of a decagon?
I know the interior angles each measure 144 degrees.
Given the length of the widest point is 10 feet.
Answered by Harley Weston. |
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A rhombus with all right angles |
2007-06-29 |
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From Rachel:
Can a rhombus with all right angles still be tagged as a rhombus, or is it then said to be a square?
Answered by Stephen La Rocque, Harley Weston and Walter Whiteley. |
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A linear system |
2007-06-29 |
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From Kim:
solve for x,y,z
x-y+z=4
2x+2y-z=-2
x-2y+2z=7
Answered by Harley Weston. |
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A quarter of a mile in eight seconds |
2007-06-29 |
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From Kevin:
What speed is a vehicle traveling if he drove a quarter of a mile in eight seconds?
Answered by Harley Weston. |
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Three pipes of varying diameters |
2007-06-29 |
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From JYOTI:
three pipes of varying diameters can fill the vessels of 1,2,and 3 L in 4,18,and 48 min respectively. what is the ratio of their diameters?(assume that speed of the flow is same in all the cases)
Answered by Sue Dunham. |
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Values of k for which k(x^2+2x+3) - 4x - 2 is never negative |
2007-06-29 |
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From claire:
Find the range of values of k for which k(x^2+2x+3) - 4x - 2 is never negative.
Answered by Harley Weston. |
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A question on continuity |
2007-06-28 |
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From Mac:
f(x) = (1/x) + (1/(2-x)) be the function and [0,2] be the interval.
1) It is continuous at the end points ?
2) is f(0) equal to f(2) ?
Answered by Harley Weston. |
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