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A specific 8 digit number in a 11 digit mobile phone number |
2006-10-13 |
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From James:
I need to know the chance of finding a specific 8 digit number in a 11 digit mobile phone number.
the number must be 29571596 and the 11 digit phone number must end in this.
All numbers 0-9 are used in a mobile number but the first 2 digits will always be 07.
Is there a way to work this out??
Answered by Stephen La Rocque. |
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A problem involving a quadrilateral |
2006-10-13 |
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From Jeff:
In the quadrilateral above, AB=AC=AD. If angle BCA = 65, then x=???
Answered by Penny Nom. |
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Replace the blanks with + or - to make the statement correct |
2006-10-13 |
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From Molly:
Hi my name is molly, and I have a question I can't answer and need your help. I am a student. This is the qustion:
Try to replace the blanks below with + or - to make the statement correct
1_2_3_4_5_6_7_8_9 = 1
Answered by Claude Tardif. |
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Two gears |
2006-10-12 |
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From A student:
gear a on the left has 18 teeth and gear b on the left has 8 teeth.
suppose gear b makes one complete rotation in the counterclockwise direction. give the angle of rotation and direction for the rotation of gear a.
Answered by Stephen La Rocque and Penny Nom. |
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Solving a linear equation |
2006-10-12 |
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From Eriona:
6p-5=17. I have to solve the equation.
Answered by Penny Nom. |
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Place value |
2006-10-12 |
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From Sue:
We have extended the place value chart out 14 places and want to know what comes after hundred trillions?
Answered by Stephen La Rocque. |
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Determine the width and height |
2006-10-12 |
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From Roshawn:
If I am given the length of 73" and the girth of 11" and am trying to determine the width and height. How would I do this?
Answered by Stephen La Rocque. |
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How many 1 square 3/8 thick pieces of steel can you get from one cubic foot of steel? |
2006-10-12 |
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From Jana:
How many 1 square 3/8 thick pieces of steel can you get from one cubic foot of steel?
Answered by Stephen La Rocque. |
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How many students are in the class? |
2006-10-12 |
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From Lillian:
There is one more boy than girls in the class, how many students in all?
Answered by Stephen La Rocque. |
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The area of regular pentagon inscribed in a circle |
2006-10-12 |
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From Admire:
i need help on how to find area of regular pentagon inscribed in a circle of radius 8cm
Answered by Stephen La Rocque and Penny Nom. |
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Plotting percentage change |
2006-10-11 |
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From Beckie:
I have worked out a set of percentage differences which are all percentage decrease. Should i express them as a negative percentage as -20%? I also need to plot them on a graph and am not sure whether to just use the percentage difference as it is, in which case i get a positive gradient, or include a negative axis and plot them in this way, in which case i would get a negative gradient. I think the slope of the curve will be the same either way so it might not matter!
Answered by Penny. |
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How do you write a variable expression |
2006-10-11 |
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From Josh:
How do you write a variable expression for the following:
The amount of money Waldo has if he has $10 more than Joe and
How much weight Kirk can lift if he lifts 30 lbs more than his brother.
Answered by Stephen La Rocque. |
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2/3 as a percentage |
2006-10-10 |
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From Marlene:
2/3 is what percentage of a circle?
Answered by Penny Nom. |
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Is a circle a regular shape? |
2006-10-10 |
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From David:
Is a circle a regular shape or an irregular shape?
Answered by Stephen La Rocque. |
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I have a 3000 sq ft house ... |
2006-10-10 |
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From Ann:
I have a 3000 sq ft house and need to use flea foggers. Each fogger treats 6000 cubic feet. How many do I need?
Answered by Stephen La Rocque. |
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