 |
|
|
|
|
|
|
|
|
Math, time and rate |
2012-05-18 |
|
From Abigaíl:
Romeo and Juliet live 40 miles apart. Romeo jogs 8mph, while Juliet “fast walks” at 4mph. They leave their houses at the same time and journey toward each other.
a) How many hours after they start will they meet?
b) Approximately how many miles from Romeo’s house is their meeting point?
Answered by Penny Nom. |
|
|
|
|
|
|
Three tennis balls |
2012-05-17 |
|
From eiman:
Three tennis balls are placed inside a container . the tennis balls are tangent to the top, bottom,and sides of the container . find the volume of air inside the container surrounding the tennis balls if the diameter of the tennis balls is 6 inches
Answered by Chris Fisher. |
|
|
|
|
|
|
16 golfers |
2012-05-17 |
|
From Nohemi:
Can 16 golfers each play in foursomes for 6 days?
I found the answer for 5 days, but is it possible to do it for 6.
Answered by Robert Dawson. |
|
|
|
|
|
|
The area of a triangle |
2012-05-17 |
|
From Emilee:
hi. How do i find the area of a triangle if the vertices are (-3,0) (-2,2) and (3,0). I graphed it and it came out a triangle. How do I find the area of it in an easy way?
Answered by Penny Nom. |
|
|
|
|
|
|
Slope |
2012-05-16 |
|
From Kodie:
What is the easiest way to find slope?
Answered by Penny Nom. |
|
|
|
|
|
|
Les dérivées partielles |
2012-05-16 |
|
From Haddouche:
Bonjour,
Je vous demande de bien vouloir m'éclaircir comment on calcule les dérivées partielles généralement étudiées dans les modèles de la concurrence fiscale à titre d'exemple celui de Wildasin ""NASH EQUILIBRIA IN MODELS OF TAX COMPETITION "", dont j'ai essayé toutes les méthodes et aucune d'elle n'est arrivée à trouver le résultat des dérivées de ce dérnier papier, à cet effet, je vous serais reconnaissant de m'éclaicir la méthode afin de résoudre ce problème qui pour moi un vrai mistère à percer.
Je vous remercie infiniment à l'avance.
Et comptant sur votre compréhension, mes salutations les meilleures.
HA
Answered by Claude Tardif. |
|
|
|
|
|
|
The depth of a chord |
2012-05-16 |
|
From Tim:
For a circle of Diameter 12 Mtrs, I have a chord length of 2 Mtrs,
How can i calculate the distance from the middle of the chord to the
perimeter of the circle
Answered by Penny Nom. |
|
|
|
|
|
|
A lamp shade |
2012-05-15 |
|
From Fleur:
I am helping my child make a cone lampshade, the measurements are as follows in "cm's"
21 cm = height
8 cm = top diametre
40 cm = bottom diametre
Please could you give the pattern (cut out) dimensions for final cut.
Answered by Penny Nom. |
|
|
|
|
|
|
Multiplying binomials |
2012-05-14 |
|
From Jordan:
How do I solve the equation:
3(x+4)(x-6)
Answered by Penny Nom. |
|
|
|
|
|
|
Sharing the profit |
2012-05-14 |
|
From Mafiza:
A and B started a business by investing $6000 and $8000 respectively. At the end of the year, a profit of $2100 is made. How much amount will A get as his share of profit?
Answered by Penny Nom. |
|
|
|
|
|
|
Two golf drives |
2012-05-14 |
|
From peter:
If a golf drive travels 250 yards with a perfectly perpendicular hit,
what is the length of the base, if a second golf drive is off line
by one degree?
Answered by Penny Nom. |
|
|
|
|
|
|
cos(theta/30) = 1 |
2012-05-14 |
|
From Hope:
cos (theta / 30 = 1
I am very confused as to how to solve it. Can you help?
Answered by Penny Nom. |
|
|
|
|
|
|
Points per quarter |
2012-05-14 |
|
From debbie:
A basketball team scores 216 points in 8 quarters . Find the teams point per quarters rate
Answered by Penny Nom. |
|
|
|
|
|
|
A normal distribution problem |
2012-05-13 |
|
From Alysia:
The scores on a test taken by 1000 students are normally distributed with a mean of 66 and standard of deviation of 12. If the college wishes only the top 8% of people to get an A, what would the cutoff score be for the A's?
Answered by Penny Nom. |
|
|
|
|
|
|
Three metallic cubes |
2012-05-13 |
|
From Pragun:
Three metallic cubes whose edges are in the ratio 3:4:5 are melt to form a single cube whose diagonal is 12*square root of 3. What are lengths of the edges(in cm) of the three cubes
Answered by Penny Nom. |
|
|
