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The area of a regular pentagon |
2008-06-02 |
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Jenna pose la question :
I would like to know if there is a formula to find the area of a regular Pentagon that is not inscribed in a circle only apothem and side length are given.
Penny Nom lui répond. |
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Substitution into a formula |
2008-06-02 |
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beth pose la question :
Given q(x) = 7xsquared + 9, find q(-7)
These were the choices I had for the answers to this problem
1.) 343
2.) -40
3.) 334
4.) -89
5.) 352
Penny Nom lui répond. |
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Can the witness' statement be correct? |
2008-06-02 |
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Leria pose la question :
The model S= radical 30df describes the relationship between the speed of a car , the conditions of the road, and the length of the skid marks when the car slams on the brakes. S is the speed of the car in miles per hour,
d is the length of the tires' skid marks in feet and f is the coefficient of the friction for the road.
In an accident, a car makes skid marks 85 feet long. The coefficient of friction is 0.6. A witness says that the driver was traveling faster than the speed limit of 35 miles per hour. Can the witness's statement be correct? Use algebra to explain your answer.
Penny Nom lui répond. |
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Pourcentage |
2008-06-02 |
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ferdjoukh pose la question :
un article passe de 12 euros à 10 euros.
quel est le pourcentage de réduction?
et quelle est l'opération à faire pour obtenir le résultat?
merci
Antoine Letarte lui répond. |
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A bridge is built in the shape of a parabolic arch |
2008-06-02 |
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megan pose la question :
A bridge is built in the shape of a parbolic arch. The bridge has a span of 192 feet and a maximum height of 30 feet. Find the height of the arch at 20 feet from its center. I need the equation and what to fill into the equation...please and thankyou!
Penny Nom lui répond. |
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The length of a piece of fabric |
2008-05-31 |
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Jeanie pose la question :
How do I convert square yards to linear yards? I know the width of the fabric is 54" wide. I am at a loss of what the formula is to figure this out; please help! Thanks!
Penny Nom lui répond. |
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50 cubic yards of dirt |
2008-05-31 |
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Mary pose la question :
50 cubic yards of dirt is allowed.
16 feet of width and 1 foot of depth.
How far can can you cover in length? in feet, yards or miles?
Janice Cotcher lui répond. |
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Lowest common denominator |
2008-05-31 |
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marlene pose la question :
cant get the common lowest denominator of 10,46,64
Janice Cotcher lui répond. |
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Substitution method |
2008-05-30 |
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taquicia pose la question :
2y-x=3
x=5+y
Janice Cotcher lui répond. |
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One chord is twice as long as another |
2008-05-30 |
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Stacey pose la question :
In a circle, If one chord is twice as long as another, is the longer chord's arc also twice the size of the smaller chord? True or False
Chris Fisher lui répond. |
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x/4 = 3 1/2 |
2008-05-30 |
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Kelsey pose la question :
How do you solve for "X" in the problem below?
X
--- = 3 1/2
4
--Kelsey
Victoria West lui répond. |
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4x^3 - 6x + 2 = 0 |
2008-05-28 |
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paul pose la question :
4x^3 - 6x + 2 = 0
Janice Cotcher lui répond. |
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The surface area of an "egg shaped" object |
2008-05-28 |
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Tom pose la question :
How do you calculated the surface area of an "egg shaped" object (ovoid) ?
Harley Weston lui répond. |
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A problem with a kite |
2008-05-28 |
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randee pose la question :
A kite that has been secured to a stake in the ground with a 20 foot string. The kite is located 12 feet from the ground, directly over point x. what is the distance, in feet between the stake and point x
Penny Nom lui répond. |
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Le volume du tas |
2008-05-28 |
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ribot pose la question :
je cherche la formule mathematique du volume d un tas de cailloux formule employée dans le bâtiment
Thierry Moisan lui répond. |
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