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The point of intersection of the pair of straight lines |
2009-11-19 |
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Stephanie pose la question :
Find the point of intersection of the pair of straight lines:
y=-3x-9
-y=4x+2
x = _______ and y = ________
I am totally confused. Please help
Robert Dawson lui répond. |
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Angular speed |
2009-11-19 |
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Atalie pose la question :
The engine of a sports car rotates at 5000 revolution per minute. Calculate the angular speed of the engine in radians per second, given that 2pi radians = 1 revolution
Robert Dawson lui répond. |
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A baseball diamond |
2009-11-18 |
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maelee pose la question :
the official distance between home plate and second base in baseball diamond is 120ft. Find the area of the official ball diamond & the distance between the bases.
Robert Dawson, Chris Fisher and Penny Nom lui répond. |
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A computer screen |
2009-11-18 |
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Leonard pose la question :
Whats the pythagorean theorem of computer measured 12"x 12" in length and width, whats the diagonal measurement in 15". Thank You
Penny Nom lui répond. |
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sin x / 1+ cos x = csc x - cot x |
2009-11-18 |
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Mansi pose la question :
i need a hint on how i could prove the following identity:
sin x / 1+ cos x = csc x - cot x
Harley Weston lui répond. |
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The three medians of a triangle |
2009-11-18 |
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Nazrul pose la question :
If the three medians of a triangle are equal, how can I prove (without using the property that the three medians of a triangle cut one another at a point of trisection) that the triangle is equilateral.
Chris Fisher lui répond. |
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Matt has 40 coins |
2009-11-18 |
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Amy pose la question :
Matt has 40 coins(nickels, dimes, and quarters). The total amount is $4.05. He has 7
more nickels than dimes. How many quarters does he have?
Penny Nom lui répond. |
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Two movies in one day |
2009-11-18 |
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jazzy pose la question :
ann and tim saw two movies in one day.The two movies lasted 4hours long .One movie was an half hour longer than the other .How many hours did the shorter movie run
Penny Nom lui répond. |
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How many girls are there in the class? |
2009-11-18 |
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Anisa pose la question :
There are 30 students in a class. A quarter of the boys ans half of the girls study music, making a total of 11 music students. How many girls are there in the class?
Penny Nom lui répond. |
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The base and height of a triangle are in the ratio of 3:2 |
2009-11-18 |
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Mike pose la question :
Find the base and height of a triangle using the ratio 3:2 and an area of 108 inches square. Is there a formula we need to use?
Thanks
Mike
Penny Nom lui répond. |
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6 numbers from 53 numbers |
2009-11-17 |
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MIGUEL pose la question :
IM A STUDENT IN HIGH SCHOOL AND IM HELPING THE SOCCER COACH WITH PLAYS
SO I NEED ALL THE POSSIBLE NUMBER COMBINATIONS OF NUMBERS 1- 53 IN SETS OF SIX
THE NUMBER CAN ONLY BE USED ONCE IN EACH SET.
Penny Nom lui répond. |
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Deducting 10% from £100 |
2009-11-17 |
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Steve pose la question :
What is the correct way of deducting 10% from £100?
Would it be £100 multiplied by 0.1 and then deduct to leave you £90; or
Would it be £100 divided by 1.1 to give you £90.91?
Penny Nom lui répond. |
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Coefficients |
2009-11-17 |
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Da'mon pose la question :
The Coefficients of the expression 8 - 5x - 4 + 3x are 5 and 3
Whether the statement is true or false.
Penny Nom lui répond. |
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One-eighth of one million dollars |
2009-11-16 |
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Jarrett pose la question :
what is 1/8 equal to out of a million dollars.
Penny Nom lui répond. |
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Three angles and one side of a triangle |
2009-11-16 |
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Esther pose la question :
How do i find the sides of an acute triangle if i know the angels are 60,45,75 and i only know one side which is 10? Thanks!
Penny Nom lui répond. |
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