SOLUTION: 1) What is the solution of the systems of equations 2x-5y=11 and -2x +3y=-9?
2)what is the slope of the linear equation 5y-10x=-15
3)What are the factors of x^2-10x-24?
4)Which
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Question 696646: 1) What is the solution of the systems of equations 2x-5y=11 and -2x +3y=-9?
2)what is the slope of the linear equation 5y-10x=-15
3)What are the factors of x^2-10x-24?
4)Which Trinomial is equivelent to (3x-2)(x+4)?
5)What is the value of y in the equation 2(3y-4)
Thank You ..!
Answer by mathbird(71) (Show Source): You can put this solution on YOUR website!
1)2x-5y=11 (adding)
-2x +3y=-9
=> -2y=2
=>y=-1
then: 2x=11+5y
=11+5(-1)
=11-5
2x=6
x=3
for checking:2x-5y==11
2(3)-5(-1)
6+5=11
2)5y-10x=-15
5y=-15+10x (dividing 5 on both sides)
y=-3+2x
y=2x-3
slope is 2
3) x^2-10x-24
x^2-12x+2x-24
x(x-12)+2(x-12)
(x+2)(x-12)
4)(3x-2)(x+4)
3x(x+4)-2(x+4)
3x^2+12x-2x-8
3x^2+10x-8
5) 2(3y-4)
it can be done by putting the equation equal to 0
2(3y-4)=0
3y-4=0
3y=4
y=4/3
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