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A Squared Number That's Negative |
2010-09-22 |
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David pose la question :
What is the only number that when it's squared becomes negative?
Stephen La Rocque lui répond. |
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COMPASS BEARING |
2010-09-22 |
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Vivinne pose la question :
Three boys, Isaac, Alex and Ken are standing in different parts of a football
field.Isaac is standing 100m North of Alex. Ken is 120m East of Alex. Find
the compass bearing of Ken from Isaac.
Stephen La Rocque lui répond. |
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Limiting Cases in Geometry |
2010-09-22 |
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Niki pose la question :
Consider a rectangle inscribed in a circle with a radius or R. What are the possible perimeters for the rectangle?
Stephen La Rocque lui répond. |
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|x+ 3| = |x-1| |
2010-09-21 |
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Jack pose la question :
|x+ 3| = |x-1|
Penny Nom lui répond. |
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What is the average speed? |
2010-09-21 |
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Cindy pose la question :
A boat travels downstream m nautical miles at d knots. It travels upstream m nautical miles at u knots. What is the average speed for the entire trip?
Penny Nom lui répond. |
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Limits |
2010-09-20 |
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rodrigo pose la question :
what's the limit of x+1/x-1, when x tends to 1?
Janice Cotcher lui répond. |
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Find the point of contact of the circles |
2010-09-20 |
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Sandra pose la question :
If the center of circle A = (-1,-3) and the radius of it is √20,
the center of circle B = (5,9) and the radius of it is √80.
Find the point of contact of the circles A and B.
Janice Cotcher lui répond. |
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40 mph for 6 minutes |
2010-09-20 |
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Andy pose la question :
If i was traveling at 40 mph for 6 minutes, what is my distance in miles?
Penny Nom lui répond. |
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order fractions from least to greatest |
2010-09-20 |
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Kameron pose la question :
How do I work this out to find the answer from least to greatest ? 48/8, 12/16, 3/5
Melanie Tryer lui répond. |
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Constructing a tipi |
2010-09-20 |
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mike pose la question :
we are thinking about making a lightweight tipi tent but we need to know what the angles and lengths of each side that we will need to cut. The height of the tipi wants to be about 2.2m span at the widest point wants to be about 3.2m we want to make it based upon a 6 sided(hexagon) shape thanks for your help
Harley Weston lui répond. |
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May Lee's cake |
2010-09-18 |
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Wafa pose la question :
May Lee bought a cake which is circular in shape. Her sister ate a quarter of the cake. Given that the area of the top surface of the remaining portion is 520 square cm, find the diameter of the cake.
Penny Nom lui répond. |
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Elimination and substitution |
2010-09-18 |
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Lauren pose la question :
Solve one using the method of substitution and the other with the method of elimination.
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a. y=5x+4
x=2y+1
b. 4x+3y=7
6x-3y=13
Penny Nom lui répond. |
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The circle centered at (2,-4) with radius 3 |
2010-09-18 |
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lupe pose la question :
Consider the circle centered at (2,-4) with radius 3. Write the equation
of this circle sketch its graph, and find the exact coordinates of its intercepts.
x-intercept
y-intercept using the quadratic equation?
Penny Nom lui répond. |
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Continuity |
2010-09-18 |
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Carina pose la question :
Hi. My name's Carina and I'm currently a sophomore in high school.
I'm having a lot of difficulties in AP Calculus with continuity,
one-sided limits, and removable discontinuities. Basically, I have no
idea how to do them or even what they are. I read the lesson but I
still don't get it. Can someone put it in simpler terms so I can
understand how to complete my questions? Thank you!
Robert Dawson lui répond. |
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Six nines |
2010-09-16 |
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Steph pose la question :
It's sort of one question. We have to use six nines to get the numbers 1-30. I got all but 22, 23, 24, and 30. Like 15 is 9+9-(9+9+9)/9.
Penny Nom lui répond. |
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