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How many lines of symmetry does a circle have? |
2019-05-28 |
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raji pose la question :
how many lines of symmetry does a circle have???
Penny Nom lui répond. |
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Compound interest |
2019-05-28 |
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Kenneth pose la question :
Hello:
Is compound interest on $1.00 for one year the same as simple interest on
$1.00 for one year?
Compound interest would be $1.01, and I believe the same amount would be
the same at simple interest.
Penny Nom lui répond. |
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Maximize monthly revenue |
2019-05-23 |
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a student pose la question :
A real-estate firm owns 100 garden type apartments. At RM400 per month, each apartment can be rented. However, for each RM10 per month increase, there will be two vacancies with no possibility of filling them. What rent per apartment will maximize monthly revenue?
Penny Nom lui répond. |
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Two circles |
2019-05-23 |
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Arman pose la question :
Two concentric circles have their centres at
point C. The radius of the smaller circle is
8 cm. The length of chord AB is 26 cm and
is tangent to the smaller circle. What is the
circumference of the larger circle?
Penny Nom lui répond. |
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Do all angles have to be equal to a number? |
2019-05-15 |
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Malik pose la question :
Do all angles have to be equal to a number? By all angles I mean adjacent, vertical, supplementary, complementary.
Penny Nom lui répond. |
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What is the original price? |
2019-05-15 |
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Tyler pose la question :
if 45% of an item is $90.00, then what is the original price
Penny Nom lui répond. |
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An 80 acre square |
2019-05-11 |
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Linda pose la question :
How long and wide is an 80-acre piece of land that is square?
How long and wide is a 160-acre piece of land that is square?
Penny Nom lui répond. |
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Pennies, nickels, dimes, and quarters |
2019-05-09 |
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william pose la question :
Ann has 177 coins (pennies, nickels, dimes, and quarters)
Her total value is $19.90
She has the same number of nickels as dimes.
She has the same number of quarters as dimes.
How many of each does she have?
Penny Nom lui répond. |
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Subdividing land |
2019-05-09 |
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Reuben pose la question :
This is the measurements of my plot, A-B 46.7M, B-C 193.1, C-D 198.5 & D-A 208.25 (Clockwise naming of sides) angle A at 90 degrees. My questions is how do i subdivide this plot from the bottom having lines running parallel to C-D, eg two 2acre plots. the the remaining part becomes my compound (Uper part at line A-B)
Harley Weston lui répond. |
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The volume of a wall |
2019-05-08 |
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Peter pose la question :
I’m building a dry stack stone wall which is 36” wide at the base, 42” tall and 24” wide at the top. What would be the volume for a 36” long segment ?
Thanks, Peter
Penny Nom lui répond. |
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Why Mean? |
2019-05-08 |
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Jill pose la question :
A group of teachers were trying to figure out why the”mean” is called mean - do you know??
Penny Nom lui répond. |
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Two numbers |
2019-05-03 |
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fds pose la question :
The difference of two numbers is 2, and their sum is 4. What are the two numbers?
Penny Nom lui répond. |
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Volume and Surface area of a sphere |
2019-05-03 |
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Caitlin pose la question :
Why does the surface area formula of a sphere have a squared radius while the volume of a sphere has a cubed radius?
Penny Nom lui répond. |
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A repeating decimal divided by a whole number |
2019-05-01 |
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Emily pose la question :
How do you divide repeating decimals by whole numbers?
Penny Nom lui répond. |
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If 45% of an item is 90.00 |
2019-05-01 |
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Gavin pose la question :
If 45% of an item is 90.00 what is the original price?
Penny Nom lui répond. |
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