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A line parallel to a given line |
2007-10-20 |
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Samaira pose la question :
Given Y=2/3 + 3/4x
Give the equation that is parallel to the given one and which touches the x-axis in x=3
Leeanne Boehm and Stephen La Rocque lui répond. |
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The volume of a regular octagonal prism |
2007-10-20 |
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Chris pose la question :
I am trying to figure out the volume of a regular octagonal prism, with side lengths of 4 inches. How do I do this?
Penny Nom lui répond. |
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A Farmer's pasture |
2007-10-19 |
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Jennifer pose la question :
A Farmer's pasture measures 100 feet by 108 feet. Each cow needs 4 square yards of pasture to have enough grass.
How many Cows should the farmer put in this pasture?
If he builds a fence around the pasture 5 feet inside the edge, how much fencing would he need?
Does this change the number of cows that can be kept in the pasture?
If so, why ?
Penny Nom lui répond. |
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Stanley Cup costume (truncated cone pattern) |
2007-10-19 |
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Janet pose la question :
You hockey fans will love this question. I am making a Stanley Cup halloween costume and need a flat pattern for the bowl portion. I believe a truncated cone will work nicely. Base circumference needs to be 32" (10.19 diameter). Top circumference needs to be 44" (14 diameter). It needs to be 8" high. Thanks for your help.
Stephen La Rocque lui répond. |
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I need to order 3/11, 1/8, 2/9 from least to greatest |
2007-10-19 |
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Andrew pose la question :
I need to order 3/11, 1/8, 2/9 in least to greatest.
Penny Nom lui répond. |
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An octagonal table |
2007-10-18 |
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Lorne pose la question :
I am 77 years old and want to build a table top with each side measuring 23 inches.
I believe the diameter would be 55.5 inches. Is this correct and what is the angle of the cuts I have to make? Thank you for your patience.
Penny Nom lui répond. |
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The nth term |
2007-10-18 |
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shannon pose la question :
Ok , what i am having problems with is the nth term. I get how the numbers come together, but i am having trouble with finding the nth term.
Penny Nom lui répond. |
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How many square inches are there in 97 acres? |
2007-10-18 |
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Glenda pose la question :
How many square inches are there in 97 acres?
Penny Nom lui répond. |
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A rectangular trough |
2007-10-18 |
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David pose la question :
A rectangular trough is 2 meter long, 0.5 meter across the top and 1 meter deep. At what rate must water be poured into the trough such that the depth of the water is increasing at 1m/min. when the depth of the water is 0.7m.
I know this involves implicit differentiation somehow, but the 3 variables, since V=l*w*h for a rectangle is confusing me. I'm not sure whether one of the variables should be fixed or not, since I'm not getting anywhere with this right now. Any help would be great.
Stephen La Rocque and Penny Nom lui répond. |
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4x+8y=32 |
2007-10-18 |
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Sara pose la question :
Rewrite the following equation:
4x+8y=32
in function form ("solve for y").
Penny Nom lui répond. |
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A conical cup |
2007-10-18 |
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Nicholas pose la question :
Water is leaking out of a small hole at the tip of a conical paper cup at the rate of 1cm^3/min. The cup has height 8cm and radius 6cm, and is initially full up to the top. Find the rate of change of the height of water in the cup when the cup just begins to leak.
Since V= (pi/3)r^2h, how do I eliminate a variable or change the equation so I that I can answer the question? Thanks.
Penny Nom lui répond. |
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0 = (1/t) - [ln(1+r) ln(t)] |
2007-10-18 |
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Brandi pose la question :
Objective: solve for t, where r = 0.05
0 = (1/t) - [ln(1+r) ln(t)]
Penny Nom lui répond. |
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Convert 13.5 oz per sq yard of fabric into grams per meter square |
2007-10-17 |
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marcy pose la question :
I need to convert 13.5 oz per sq yard of fabric into grams per meter square.
Penny Nom lui répond. |
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How far away is the town? |
2007-10-17 |
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georgia pose la question :
You are driving to town 15 miles away. If you have already driven 3 1/4 miles, how far away is the town.
Penny Nom lui répond. |
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2 password policies |
2007-10-17 |
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Larry pose la question :
2 password policies are in question.
Policy 1 states that a password must be between 6 and 8 characters
Policy 2 states that that a password must be exactly 8 characters.
Both policies state that Passwords can contain A-Z a-z 0-9 (26*2)+ 10 characters to choose from.
Which policy is stronger?
How many potential passwords exist for policy 1 and how many for policy 2?
Penny Nom lui répond. |
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