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15g/50g^3 |
2006-11-12 |
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Nicole pose la question :
How do u simplify the variable expression? 15g/50g^3
Penny Nom lui répond. |
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ml to grams |
2006-11-11 |
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Lisa pose la question :
We have 900mL and you have to multiply by 1.18 grams do you just multiply and get 1062 grams or am I missing a step?
Stephen La Rocque lui répond. |
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Filling a tank using two pipes |
2006-11-11 |
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Tracey pose la question :
One pipe can fill a tank in 8 minutes and a second can fill it in 12 minutes. If the tank is empty, how long will it take both pipes to fill it.
Stephen La Rocque and Penny Nom lui répond. |
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(4x-5)^2 = -32 |
2006-11-11 |
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Tracey pose la question :
(4x-5)^2 = -32
Stephen La Rocque and Penny Nom lui répond. |
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The name of a shape |
2006-11-11 |
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Valentina pose la question :
I have a shape of 4 sides 3 are the same length (2cm each) and the other smaller (1.5cm)
Chris Fisher lui répond. |
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A trillion sugar cubes |
2006-11-10 |
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Leeza pose la question :
How many dump trucks (I believe the standard bed size is 16'L x 8'W x 4'D) would it take to hold one trillion sugar cubes (which I believe are approximately 2cm in L, W and D)?
Penny Nom lui répond. |
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After how many hours will the class have been notified? |
2006-11-10 |
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Brittany pose la question :
A college math class consists of 32 students. On Monday at 9:00 a.m., the teacher tells one student to notify other students that the test scheduled for Wednesday at 9:00 a.m. has been cancelled. The model for the number of students in the class who will have heard this information after t hours is N=32-32e^-0.02t. After how many hours will the class have been notified?
Stephen La Rocque lui répond. |
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Tangent lines |
2006-11-09 |
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Melissa pose la question :
let f be a function with f(1)=4 such that for all points (x,y) on the graph of f the slope is given by (3x^(2)+1)/(2y)
a.)Find the slope of the graph of f at the point where x=1.
b.)Write an equation for the line tangent to the graph of f at x=1 and use it to approximate f(1.2)
c.) Find whether f is concave up or concave down when x=1. Is your answer in part b an overestimate or an underestimate?
Stephen La Rocque lui répond. |
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Number combinations |
2006-11-09 |
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Bob pose la question :
how can I find out all the different combinations for the numbers 8168 example 8168, 8868, 1688,1886,6818 etc. how many are their.
Penny Nom lui répond. |
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When kx^2+3x+1 divided by (x-2) the remainder is 3 |
2006-11-09 |
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Brianna pose la question :
For the dividend, find the value of k if the remainder is 3. (kx^2+3x+1) divided by (x-2)
Penny Nom lui répond. |
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A sphere in a cube |
2006-11-09 |
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Lukas pose la question :
Given a cube and a cross diagonal, what is the largest size sphere that fits in the cube and does not touch or intersect the cross diagonal?
Steve La Rocque, Penny Nom and Walter Whiteley lui répond. |
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Least common multiple |
2006-11-08 |
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Melenie pose la question :
I have a daughter in 5th grade she can't seem to grasp the concept of finding LCM's does anyone have a quick easy way for her to learn?????
Stephen La Rocque lui répond. |
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Piecewise functions |
2006-11-08 |
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Kait pose la question :
We discussed how to graph piecewise functions today and I'm very lost!! I'm sitting here staring at this problem that says:
f(x){2x+1, if x <1
f(x){-x+4, if x is greater than or equal to 1.
Penny Nom lui répond. |
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The slope-intercept form |
2006-11-08 |
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Kilihea pose la question :
I need to graph this equation but first need to turn it into a slope-intercept form. 6x - 3y = -3 I would really appreciate it if you could help me turn it into a slope-intercept form.
Penny Nom lui répond. |
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The rate of change of the perimeter of a square |
2006-11-07 |
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Karli pose la question :
Find the rate of change of the perimeter of a square with respect to its area.
Stephen La Rocque lui répond. |
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