Answers by visitors named: Alaina
x-5 x+5
___ = ___
4 x+2
First you want to cross multiply
(x-5)(x+2) = 4(x+5)
Then use FOIL on the left hand side, and distribute the 4 on the right hand side
to get X(squared)-3x -10 on the left
= 4x+20 on the right
subtract the 4x+20 on the right and left side
you get x(squared) -7x -30 =0
now find the roots of this equation
(x-10)(x+3)=0
x=10 and x=-3
Those are the solutions for x
perpendicular lines have opposite sign and reciprocal slopes from the original line you are given. put the first equation into proper form
y= (-2x/3)+(5/3)
the slope in this case is -2/3
Therefor a perpendicular line will have the slope 3/2.
This is also what I entered, yet it is wrong
The Chain Rule- of course! Thank you very much Steve. :-)
Can someone help me with this? I have already solved it. Thank you.
Thank you so much! I see what I should have done now. :P
Oops I meant 4x^3 + x^2 - 12x + 1/ ((x^2+1)^3)
120cm and 72cm
GCF = 24
120/24=5
72/24=3
3X3=9 square pieces
17รท1,569
Dear,Ms.Sue
Hi I'm Alaina I'm in 5th grade I'm studying Rome, Italy and i need answers are u sure its Britian.
Sincerely,
Alaina
I need the answer