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Dealing with surds |
2015-11-14 |
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Agnes pose la question :
simplify (1-√3)(1÷3+√3)
Penny Nom lui répond. |
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The diagonal of a rhombus |
2015-11-14 |
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Om pose la question :
In a rhombus ABCD, angle A=60° and side AB=6 cm. Then diagonal BD is ?
Penny Nom lui répond. |
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The area of a domed roof |
2015-11-13 |
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Brandon pose la question :
I have a tank with a 13' radius that has a domed roof of 3.5' tall How do I figure out the area in SQFT?
Penny Nom lui répond. |
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A three digit number |
2015-11-13 |
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Tina pose la question :
The sum of the digits of a 3-digit odd number is 13. The digit in the tens place is 4 less than the digit in the hundreds place and 3 more than the ones digit. What is the number?
Penny Nom lui répond. |
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Working with fractions |
2015-11-12 |
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muhammad pose la question :
There are 1200 pupils in a school, 2/3 of them are girls, 1/4 of the boys are overweight.How many boys are overweight?
Penny Nom lui répond. |
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A volume in cubic yards |
2015-11-12 |
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James pose la question :
The first formula for figuring cubic yards of concrete need is length in feet, times width in feet, times depth in actual inches, divided by 320. Such as, 150x 50 feet x 4inches divided by 320 = cubic yards. How and why does this formula work?
Penny Nom lui répond. |
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A concrete container |
2015-11-12 |
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Karstin pose la question :
The exterior of a concrete container will be 10 feet by 8 feet by 4 feet tall. The walls and the bottom are 6 inches thick. What will it cost to construct it if concrete is $98.95/cubic yard?
Penny Nom lui répond. |
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Fencing around a rectangular field |
2015-11-11 |
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Darlene pose la question :
Question from Darlene, a parent:
A farmer has 10,000 meters of fencing to use to create a rectangular field. He
plans on using some of the fencing to divide the rectangular field into two
plots of land by constructing a fence inside the rectangle that is parallel to one
of the sides. Let X be the width of the rectangular field. Write an equation
to express the area of the field as a function of X. Find the value of X that
maximizes the area of the field.
Penny Nom lui répond. |
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Roof Square footage |
2015-11-11 |
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Todd pose la question :
Question from Todd:
Good Day.
I have to figure out the square footage of a quonset style roof that's not playing by the rules The building dimensions (rectangular) are 63'x135' the height of the roof is 9.25'. It not an entire Quonset, It's that style of roof,(curved). There are concrete block walls 10' up to the metal roof.
Thank you!
Todd
Harley Weston lui répond. |
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The combination to a locker |
2015-11-11 |
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Jason pose la question :
Hi,
I can't seem to open my locker cause I forgot the combination, the numbers are 1-8
Without repeat for 4 number for example 1234 or 2345 for numbers 1-8 without any repeat.
Harley Weston lui répond. |
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The derivative of x^1/3 |
2015-11-08 |
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omar pose la question :
hi can help me
am teacher ask me about x^1/3 Derivation definition .
Penny Nom lui répond. |
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Is 22/7 bigger or smaller than 3.14? |
2015-11-06 |
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Natalie pose la question :
Is 22/7 bigger or smaller than 3.14?
Harley Weston lui répond. |
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A schedule for 8 golfers over 5 days |
2015-11-04 |
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Ged pose la question :
Hope you can help with the following to save next years arguments !
Schedule for 8 golfers playing as pairs in 2 X 4 balls on 5 days.
No player to pair same player more than once and to have played with each player
In the 4 ball.
Thanks.
Victoria West lui répond. |
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The domain of cos2x/(sinx-2) |
2015-11-02 |
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Ameen pose la question :
Find the domain of:
f(x) = cos2x/(sinx-2)
Penny Nom lui répond. |
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Factoring a trinomial |
2015-11-02 |
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Eric pose la question :
2v(squared) +11v +5
Penny Nom lui répond. |
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