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y = sin(2x) |
2007-03-22 |
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bader pose la question :
sin(2x)
find dx/dy
Penny Nom lui répond. |
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The velocity of an aircraft |
2007-03-22 |
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William pose la question :
Hello,
I don't understand how to work this problem. Thanks in advance for your help!
A jet moving at 500.0 km/h due east moves into a region where the wind is blowing at 120.0 km/h in a direction 30.0 degrees north of east. What is the new velocity and direction of the aircraft relative to the ground?
Penny Nom lui répond. |
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Which solid figure has 4 more edges than vertices? |
2007-03-22 |
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dawn pose la question :
which solid figure has 4 more edges than vertices?
Penny Nom lui répond. |
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The height of a pole |
2007-03-22 |
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clyde pose la question :
I am trying to determine the height of a pole by using 3 angles top 30.8 deg, center 17.3 deg, and bottom -5.8 deg. Can you point me in the right direction ?
Stephen La Rocque lui répond. |
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The Reuleaux Triangle |
2007-03-22 |
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Dani pose la question :
Hi!
My question is:
Determine how the area of the Reuleaux Triangle of width h compares to the area of a circle of width h?
Thanks!
Dani
Penny Nom lui répond. |
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The volume of a hemisphere |
2007-03-21 |
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Sarah pose la question :
How do you calculate the volume of a hemisphere?
Thanks.
Penny Nom lui répond. |
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Adding and Subtracting Rational Expressions |
2007-03-21 |
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Pricilla pose la question :
Pricilla
I do not know how to do this problem. Don't know where to start.
[(5)/(2x-8)]+[(3x^2+15)/(x^3-4x^2+5x-20)]
Stephen La Rocque lui répond. |
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Angles of depression |
2007-03-21 |
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romaine pose la question :
a woman of height 1.4m standing on top of a building of height 34.6m veiws a tree some distance away.
she observes that the angle of depression of the bottom of the tree is 35 degrees, and the angle of depression of the top
of the tree is 29 degrees. assume that the building and the tree is on level ground.
(a) calculate the distance of the woman from the top of the tree measured along her line of sight.
(b) determine the height of the tree.
Stephen La Rocque lui répond. |
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Another mixture problem |
2007-03-21 |
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roger pose la question :
I have 6800 gallons of a 17% glycol solution. I need to add how many
gallons of 100% glycol to this to raise the concentration to 22%, also 20%?
Stephen La Rocque lui répond. |
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A mixture problem |
2007-03-21 |
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roger pose la question :
I have 100 gallons of 100% glycol. I need to make this a 20% solution,
would I just add this to 400 gallons to make the 20% glycol solution?
Stephen La Rocque lui répond. |
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Synthetic division |
2007-03-21 |
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Edward pose la question :
Hi there,
please, explain me synthetic division of polynomial functions.
for examp.: 3x3 + 2x2 +4 divide by x-2 (number after variable x is the powre of x )
Thank you. Edward.
Melanie Tyrer lui répond. |
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What makes a relation a function? |
2007-03-21 |
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san pose la question :
What makes a relation a function?
Haley Ess lui répond. |
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The quotient of two integers |
2007-03-21 |
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Sarah pose la question :
Without actually dividing, how can you decide whether the quotient of two integers is positive, negative, or 0.
Penny Nom lui répond. |
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Examples of algebra used in life |
2007-03-21 |
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Arianna pose la question :
i need to find about 5 different examples of algebra used in life, and im not sure where to start. does anyone have any suggestions as to topics that i should choose for my project?
thank you so much for all of your input.
Arianna Leigh
Penny Nom lui répond. |
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Cost of ribbon |
2007-03-20 |
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kelly pose la question :
we are doing rate
Ribbon costs $1.44 for 3m
a). What is the cost per meter?
b). How much would 5 m of ribbon cost?
c). How much ribbon could you buy for $12.00
Penny Nom lui répond. |
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