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An irregular hexagon |
2011-02-09 |
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From Emma:
Hello,
I have math question about how to find the area of an irregular hexagon.
It is shaped like a backwards L and the side lengths are as follows
11cm
8cm
5cm
5cm
6 cm
3cm
Can you please help me find the area of this?
Emma
Answered by Penny Nom. |
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Two tangent circles |
2011-02-09 |
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From xhesika(jessica):
Two circles of radius 10 are tangent to each other.A tangent is drawn
from the centre of one of the circles to the second circle.To the nearest
integer find the area of the shaded region.
Answered by Penny Nom. |
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Throwing a football |
2011-02-08 |
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From Janet:
a football is thrown into the air from 2 meters high. After 1 second it is 6.9 meters high. After another second it is 2 meters high. How high is it after 1.02 seconds and .05 seconds? when will it reach 5.136 meters? I am not sure how to extract the numbers I need and what equations to use them in?
Answered by Stephen La Rocque. |
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Reversing the digits |
2011-02-08 |
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From rejie:
if the digits are reverse , the number is 9 less than the original number.what is the equation?
Answered by Penny Nom. |
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A pattern is built with cubes. |
2011-02-08 |
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From e:
A pattern is built with cubes.
The first item is 1 cube.
The second item is a block of 8 cubes.
The third item is a block of 27 cubes.
If the pattern is continued, how many cubes are needed for the fourth and fifth?
Answered by Penny Nom. |
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Rearrange for x |
2011-02-06 |
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From sue:
(x+7)/3 = (3xy+2x)/4 rearrange for x
Answered by Penny Nom. |
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A tangent to a circle |
2011-02-06 |
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From debz:
what is the formulae of the tangent to a circle.... our teacher gave us a lot of homework.. and she ask us to find the formulae by ourselves..
Answered by Penny Nom. |
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I have nine players, three rounds of golf |
2011-02-05 |
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From Pat:
My problem is I have nine players three rounds of golf, please could you give me the best formula so that no two players play twice together
Answered by Victoria West. |
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What is the height of the building? |
2011-02-05 |
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From Myra:
The angle of elevation is 45 degrees. The distance from George's foot to the top of the building is 50m. What is the height of the building?
Answered by Penny Nom. |
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Calibrating a conical tank |
2011-02-05 |
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From Bill:
Hi, I have a round tank with tapered sides where I know the diameter at the top and bottom. Is there a formula I can use to calculate the volume by measuring from the bottom up the side (at the angle of the side) to any given point? Thanks, Bill
Answered by Stephen La Rocque and Penny Nom. |
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Daily life example of logarithms |
2011-02-04 |
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From owais:
what are the application or daily life example of logarithms?
Answered by Harley Weston. |
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The nearest one and a half and the nearest inch |
2011-02-02 |
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From Miranda:
REASON:sarah gave the same answer when asked to round 4 seven eighth inches to the nearest one and a half and the nearest inch. explain why sarah is correct?
Answered by Penny Nom. |
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A cone with a specific angle |
2011-02-01 |
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From John:
Hi my daughter came with a seemingly easy question (which to me it was not)
How to make/calculate a cone of a specific angle from top to bottom radius.
Answered by Penny Nom. |
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1 and four eights inches |
2011-02-01 |
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From Miranda:
WRITING TO EXPLAIN:If a line is measured as 1 and four eighth inches long,explain how you could simplify the measurement?
Answered by Penny Nom. |
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An even multiple of 27 |
2011-02-01 |
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From parth:
the 6 digit # 63x904 is an even multiple of 27 what is X
Answered by Penny Nom. |
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