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Centrale des maths - centraledesmaths.uregina.ca
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Why 1/3 in the volume of a cone? 2018-10-20
Keith pose la question :
In the formula for the volume of a pyramid, Volume = 1/3 * base * height, where does the 1/3 come from, intuitively?
Penny Nom lui répond.
f(x) and f(-x) 2018-10-19
Simran pose la question :
what is difference between f(x) compared to f(-x) on graph
Penny Nom lui répond.
Angular speed 2018-10-18
Akidima pose la question :
A bicycle wheel rotates uniformly through 2.0 revolutions in 4.0 seconds . What is the average angular speed of the wheel
Penny Nom lui répond.
Filling a candy box 2018-10-16
Stephanie pose la question :
My child had the question: A candy box has the following measurements. 10x6x4Find the total volume. (We got that one right 240in3) But... then it said “How many 1/2 inch cubed pieces of candy can fit in the box? This is where we disagree. Please help.
Penny Nom lui répond.
Covering 6 acres with dirt 2018-09-27
Scott pose la question :
How many cubic yards of dirt would come from 6 acres, 6 ft. deep?
Penny Nom lui répond.
The area of a trapezoid 2018-09-24
An other pose la question :
AB-272 feet: AC 690 feet; CD-330 Feet; DA-669Feet Calculate the area in feet and Acres.
Penny Nom lui répond.
Two curves 2018-09-23
Megan pose la question :
How do i find the interception points of xy=-2 and y=x+3? Many thanks!
Penny Nom lui répond.
The point-slope equation for a line 2018-09-23
Sally pose la question :
The equation of the line in point-slope form for the line passing through the point ( 4, -6) and parallel to the line y = -6x + 2. Describe the steps.
Penny Nom lui répond.
An inequality with no solution 2018-09-20
Alena pose la question :
I'm trying to help with a homework problem. Can you please help me?

2kx - 3k < 2x + 4 +3kx

We are solving for "k" with no solution.

Penny Nom lui répond.
Compatible numbers 2018-09-19
Jessica pose la question :
Hello, I'm having trouble helping my daughter she is in 5th grade and I tell you her math is so much different then the math I learned in school and I been out of school for quite some time so it's a little hard for me.
Anyway her math is very confusing for me they are saying use compatible numbers to find two estimates.
I have no idea what that even mean I tried using Google but still don't get it . The problem is 12 divided by 478 using compatible numbers to find two estimates.... please help

Penny Nom lui répond.
The sum and difference of two numbers 2018-09-17
Feni pose la question :
The sum of two numbers is 4. The difference of the two numbers is 2. What are the two numbers?
Penny Nom lui répond.
A gas and oil mixture 2018-09-16
April pose la question :
For a new motor bike, the recommended ratio of gas to oil is 27:1 by volume. How much gas and how much oil are needed to fill a 14 L tank on a new motor bike?
Thank you

Penny Nom lui répond.
Predicting the number of fish in a lake 2018-09-16
April pose la question :
A researcher catches 30 fish in a pond, attaches a marker to their fin and releases them. The next day she places a large net in the water and catches 9 fish. 3 have the marker attached to their fin. Can she predict the number of fish in the pond???
Thank you

Penny Nom lui répond.
The volume of a hotel soup pan 2018-09-15
Melanie pose la question :
If the hotel pan measures 12 inches long x 5 inches wide x 6 inches tall, how many quarts of soup will the hotel pan hold?
Penny Nom lui répond.
Velocity 2018-09-14
Adrian pose la question :
If Jill was traveling at 300 miles in 4 hours due South what was his velocity in miles per second.
Penny Nom lui répond.
 
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