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Geometry with A Ladder Using Trig Functions |
2008-09-20 |
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From Please:
A ladder makes an angle of 50 degrees with the ground. if the base of the ladder is 10 feet from the building, how high up the building does the ladder reach?
i saw that someone else had a similar question, but we arn't using the pythagorean therom. we are using trig functions. Most of the problems we are doing is with the tangent. so this one probably is too.
Answered by Penny Nom. |
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Cutting a pipe at an arbitrary angle |
2008-09-20 |
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From John:
from the original question Al asked about cutting a 200 diameter pipe in 45 degrees. can someone explain the math steps required to creating the graph. I am trying to do the same thing only using a 150 degree cut.
Answered by Harley Weston. |
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A father and daughter problem |
2008-09-19 |
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From Lamarr:
A father is four times as old as his daughter is now. In 20 years he will be
only twice as old as his daughter. How old are the father and daughter now?
Answered by Penny Nom. |
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Simplify [[1/(x+3)]-1/3]/x |
2008-09-19 |
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From diana:
How does [[1/(x+3)]-1/3]/x simplify
Answered by Harley Weston. |
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Oils and fats |
2008-09-18 |
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From Barry:
I'm doing a nutrition assignment and I'm adding up my Oils and Fats category.
I have 10ml of butter to add to 31g of fat so I'm trying to figure out what to do or I should say how to figure out the answer.
Barry
Answered by Penny Nom. |
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The weight of a concrete cylinder |
2008-09-18 |
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From Curtis:
I am trying to calculate the weight of a concrete cylinder. The diameter is 56" and the thickness or depth is 24". Can anyone help me? If possible I would like to see the formula as to how the answer was derived. Thank you
Answered by Harley Weston. |
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Simplifying equations |
2008-09-18 |
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From diana:
I do not know how to simplify equations. How does 5x^2-7X+2 become (x-1) (5x-2)?
Answered by Penny Nom. |
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Concert tickets |
2008-09-18 |
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From Keisha:
Gross Receipts. Six thousand tickets are to be sold for a concert,
some for $9 and the rest for $15each. If x is the number of $9 tickets
sold , write an algebraic expression that represents the gross receipts
from ticket sales, assuming all tickets are sold. Simplify the expression.
Answered by Penny Nom. |
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An Euler diagram and a logic argument |
2008-09-18 |
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From Regina:
Use a Euler diagram to determine whether the following argument is valid or invalid.
No wizard can yodel
All lizards can yodel
No wizard is a lizard
Answered by Penny Nom. |
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Number of factors |
2008-09-18 |
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From Austin:
I am stuck on finding what type of number has exactly two factors and
what type of number has an odd number of factors? I need some examples.
Answered by Penny Nom. |
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Adding fractions |
2008-09-17 |
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From amanpreet:
please can you help me to simplify:
2(c-3) / 7 + 3(4c-2)/2
Answered by Penny Nom. |
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The volume of a cylinder in gallons |
2008-09-17 |
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From subash:
i want to calculate volume of cylinder tank whose height is 1700mm and
diameter is 1900mm and to convert volume into gallon ?
Answered by Harley Weston. |
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Art and Integers |
2008-09-17 |
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From pamela:
how do artists use integers?
Answered by Janice Cotcher. |
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Two Step Equation |
2008-09-17 |
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From calea:
i really dont now what two-step equation means?
Answered by Janice Cotcher. |
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Finding Traveling Time of a Projectile Given a Formula |
2008-09-17 |
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From David:
A juggler tosses a ballinto the air with a velocity of 40ft/sec from a height of 4 ft. Use s= -6t^2 + vot+so to find how long it takes for the ball to return to the height of 4 ft.
I was wondering how should i start this out, and can you give me a brief explanation on the formula they ask you to use? thx
Answered by Janice Cotcher. |
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