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Centrale des maths - centraledesmaths.uregina.ca
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Covering the ceiling of a garage 2017-02-20
DeAnna pose la question :
I am trying to drape a 15 x 30 garage with yards of fabric. If the yard of fabric is 60 inches wide, would 10 1/4 yards be enough for my space?
Penny Nom lui répond.
A total amount of $27,500 invested at 5% and 7% 2017-02-19
Brad pose la question :
Kristina invests a total of $27,500 in two accounts paying 5% and 7% simple interest, respectively. How much was invested in each account if, after one year, the total interest was $1,645.00.
Penny Nom lui répond.
A block base for a plywood rectangle 2017-02-18
Joe pose la question :
How many cinder blocks 16x8 would i need to build a solid base for a plywood base 54inches wide and 30 inches deep Thank you
Penny Nom lui répond.
Addition and subtraction base 5 2017-01-29
BABAWALE pose la question :
Simplify 342five +132five-223five
Penny Nom lui répond.
Vinculum 2017-01-27
Dick pose la question :
What is the line or bar over a Roman Numeral called?

Eg. V with the bar over it representing 5,000 .

Penny Nom lui répond.
Feet per second to miles per hour 2017-01-27
ron pose la question :
if a vehicle travels 50 feet in 2.5 seconds what is the speed in mph. 3600 sec in hour /5280 feet in a mile i get .68181818. how do i figure the 2.5 seconds. all the calculators I've used show 34 mph is that correct or am i forgetting the 2.5 second. please help.
Penny Nom lui répond.
The volume of a slab 2017-01-21
Russell pose la question :
Working with a segment of a circle. The O.D. is 3.440" the length of the chord is 3.130 I need information on the volume of the largest area. I would like to know (in thousands of an inch) how tall would the largest area need to be to equal .1143 cubic inches If you need more info I can send it Thanks in advance
p lui répond.
Angular speed 2017-01-21
Kenzi pose la question :
A wheel of radius 14 inches is rotating 45°/sec. What is the linear speed in in/sec and the angular speed in RPM? (Round your answers to three decimal places)

I already found the linear speed. I got 10.996 in/sec. I don't know how to find the angular speed.

Penny Nom lui répond.
The ratio of students to teachers 2017-01-20
Dylan pose la question :
The ratio of students to teachers at a school is 19:1. How many students are there in each total number of people?
Penny Nom lui répond.
The average rate of change of cot(t) 2017-01-18
Brianna pose la question :
Hello! It's been a while since I've taken a math course, and I'm stuck on a problem in my calculus course.
The question is this:

Find the average rate of change of the function over the given interval.
h(t)=cot(t) a) [5pi/4, 7pi/4]

Penny Nom lui répond.
Five equations 2017-01-16
Muhammed pose la question :
A x 4 = E
B ÷ 4 = E
C + 4 = E
D - 4 = E
___________
& A + B + C + D = 100
what is the value of E

Penny Nom lui répond.
Form the quadratic equation which has given roots 2017-01-16
Tharshini pose la question :
Given a and B are the roots of the quadratic equation x^2+4x+7=0. Form the quadratic equation which has the roots 3a-1 and 3B-1
Penny Nom lui répond.
One millionth of one percent of 90,000,000,000 2017-01-16
Gene pose la question :
What absolute number is one millionth of one percent of 90,000,000,000
Penny Nom lui répond.
How do I establish the original List Price? 2017-01-15
Bob pose la question :
(1) I have a net price item at $4,664.66 but do not have the discount percentage. I have been told I received 40%? How do I establish the original List Price and to confirm what discount I received?
Penny Nom lui répond.
A circle inscribed in an isosceles triangle 2017-01-14
Sal pose la question :
There is a right isosceles triangle. Inscribed inside of it, is the largest possible circle. Ho do you find the value of the radius?

I want to find out a way of only using the rules/laws of geometry, or is that not possible.

Penny Nom lui répond.
 
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