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Projectile motion equations |
2007-06-12 |
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Dillon pose la question :
Ron throws a ball straight up with an initial speed of 60 feet per second from a height of 5 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
Stephen La Rocque lui répond. |
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Converting dollars to gallons |
2007-06-12 |
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Cynthia pose la question :
How do I solve this problem?
If a family uses .20 per 100 gallon of water. How many gallons would
$10.00 cost, divided amoung 3 people?
Thanks, Cynthia
Stephen La Rocque lui répond. |
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A round pool |
2007-06-12 |
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Gene pose la question :
How many yards of concrete to put a 28' round pool...it is to be 4 inches deep
Penny Nom lui répond. |
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What is his regular hourly rate? |
2007-06-12 |
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Gilligan pose la question :
John Ritter, who is paid time-and-a-half for hours greater than 40, had a gross weekly wage of $442 for 48 hours. What is his regular hourly rate?
Penny Nom lui répond. |
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Comparing and ordering fractions |
2007-06-12 |
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virgil pose la question :
Order the fractions
2/5, 2/3, 2/7
Penny Nom lui répond. |
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Throwing a ball from the top of a building |
2007-06-12 |
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Gilligan pose la question :
s = distance (in feet)
Building height = 96 feet
t = seconds
Use s = 96 + 80t - 16t^2 to answer the question given below.
QUESTION:
After how many second t will the ball pass the top of the building on its way down?
Penny Nom lui répond. |
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24 Game: 7, 5, 3, 3 |
2007-06-11 |
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Natasha pose la question :
In the maths game called '24', how can you solve 7, 5, 3, 3?
I like playing a maths game called '24'.
Stephen La Rocque lui répond. |
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How high does the ladder reach? |
2007-06-11 |
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Madi pose la question :
A ladder 8 ft long resting on a house makes a 60 degree angle with the ground. how far up the house does it reach?
Stephen La Rocque lui répond. |
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A sequence of circles |
2007-06-11 |
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Ann pose la question :
Please help with solving the following problem!!!
A circle is inscribed in an equilateral triangle with a side of length 2.
Three circles are drawn externally tangent to this circle and internally
tangent to 2 sides of the triangle. 3 more circles are drawn externally
tantgent to these circles and internally tangent to 2 sides of the triangle. if
this process continued forever, what would be the sum of the areas of all the
circle? the answer 1 parent came up with was Pie over 2, but we don't
know how he did it. Can you please show the work or explain the answer to
this problem?
Thank you
Ann
p s my daughter is in 9th grade math.
Steve La Rocque, Chris Fisher and Penny Nom lui répond. |
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How many terms in this sequence? |
2007-06-11 |
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Jesse pose la question :
How do I find how many terms are in the sequence? 51, 48, 45, ...., -75
Stephen La Rocque and Penny Nom lui répond. |
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A cord of wood |
2007-06-11 |
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Wendi pose la question :
A cord of wood is equal to a stack of wood that is 8 feet long, 4 feet wide, and 4 feet high. How many cords of wood are in 1 cubic foot?
Stephen La Rocque lui répond. |
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15 = 19.2 t (time) - 4.9 t squared |
2007-06-11 |
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Nicole pose la question :
15 = 19.2 t (time) - 4.9 t squared
Penny Nom lui répond. |
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The area of a quadrilateral |
2007-06-10 |
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Lucy pose la question :
Calculate the area of the quadrilateral ABCD.
AB= 4.1cm, BC = 7.6cm, AD= 5.4 cm, CD= ?
Angle ABC = 117, Angle ADC = 62.
Give your answer correct to 3 significant figures.
Stephen La Rocque and Penny Nom lui répond. |
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A right rectangular prism |
2007-06-10 |
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Wendy pose la question :
if a right rectangular prism volume is 36cubic cm how can i find the base and height.
Penny Nom lui répond. |
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Rational polynomial expressions |
2007-06-09 |
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a student pose la question :
I have a question that continues to lead me to the answer x/(x - 1) but according to my math book, the answer should be 1/(x - 1).
Who is right? Who is wrong?
Here is the question:
(x^2 - 6x - 27)/(x^2 - 11x + 18) DIVIDED by (x^3 + 2x^2 - 3x)/(x^2 - 2x)
Stephen La Rocque lui répond. |
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