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What is the interest on $50,000.00 at 5% for 40 days? |
2006-07-12 |
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From A borrower: What is the interest on $50,000.00 at 5% for 40 days? Answered by Penny Nom. |
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A board is cut into two pieces... |
2006-07-11 |
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From DeAnna: A 102" board is cut into 2 pieces. One piece is two times the length of the other. Find the lengths of the two pieces. Answered by Stephen La Rocque. |
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Building an octagon-shaped deck |
2006-07-11 |
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From Maurice: I'm a landscaper and one of my customers wants me to build her an octagon shaped deck in the back yard that has a measurement of 16 by 16. I'm not sure of the way to measure for materials required. It will be built with 2 by 6 lumber with a half inch spacing between the 2 by 6. Answered by Stephen La Rocque. |
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The last digit of a six-digit number is 2. |
2006-07-09 |
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From GG: The last digit of a six-digit number is 2. If the 2 is moved to the start of the number, the new six-digit number is only a third of the original number. Find the original number.
Answered by Paul Betts, Chris Fisher, Penny Nom. |
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The dimensions of a rectangle |
2006-07-09 |
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From Lori: The length of a rectangle is 1 cm more than 3 times its width. If the area of the rectangle is 61 cm2, find the dimensions of the rectangle to the nearest thousandth. Answered by Penny Nom. |
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A problem with arc sine |
2006-07-07 |
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From Scott: How to prove arc sin x = arc tan( (x)/√(1-x2))
Answered by Penny Nom. |
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Isoperimetric quotients |
2006-07-07 |
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From Jessica: How do you work out an algebraic equation for the IQ of an isosceles triangle. Answered by Penny Nom. |
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Flying with and against the wind |
2006-07-06 |
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From Tim: When a plane flies with the wind, it travels 800 miles in 4 hours. Against the wind it takes 5 hours to cover the same distance. Find the rate of the plane in still air and the rate of the wind. Answered by Stephen La Rocque. |
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How old is y = mx + b? |
2006-07-05 |
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From Beckie: I am taking intermediate algebra this summer (Math 95), and have a question for you. My instructor will award extra credit points to any of us who find out how old the formula
y = mx+b is. Would you happen to know the answer? Answered by Penny Nom. |
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Two water jugs |
2006-07-05 |
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From Kisha: suppose that you have two water jugs, one which holds three gallons and one which holds five gallons. in additions, you have a water faucet at your disposal. your job is to find a method that produces exactly one gallon of water, another method that produces exactly two gallons of water, another method that produces exactly three etc up to exactly eight gallons of water. you may fill jugs from the faucet or from one another. you may not rough estimates??? Answered by Penny Nom. |
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A tangent to a circle |
2006-07-05 |
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From Izumi:
I have problems finding the point of tangency between the circle C
x2 + y2 + 4x - 6y - 12 = 0
and the tangential line that passes through the point P (6, -1).
Answered by Stephen La Rocque. |
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Concrete for a porch |
2006-07-04 |
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From Sherry: I'm having a porch,the measurement is 3in.deepx10ft.wide x52ft.long how many yards is that i need? the concrete truck wont deliver unless it 5yards or more. Answered by Stephen La Rocque. |
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The lowest denominator |
2006-07-02 |
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From Lisa:
What is the lowest denominator for the following numbers:
a) 26
b) 21
c) 47
Answered by Stephen La Rocque. |
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A 9 foot diameter circle |
2006-07-02 |
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From Lisa: How do I calculate 9 foot diameter measurement in total feet?? Answered by Stephen La Rocque. |
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Two algebra questions |
2006-07-02 |
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From Majeedah:
I'm upgrading thru correspondence and haven't been in school for a long while, so I have no class or teacher to explain the basics to me.
I have a couple of questions:
The problem is this:
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f(x) = x2 - 2, Find the expression.
Q f(-x)
A x2 - 2
Why is the answer not -x2 - 2?
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A relation f, is given by f(x) = x - 2/x. Find the expression.
Q 2/f(3)
A 6
How do you get the answer.
Answered by Stephen La Rocque. |
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