Answer:
v = - 
Step-by-step explanation:
Given
- 
- 
v = 
Multiply through by 30 ( the LCM of 2, 3 and 5 )
- 15 - 20v = 24 ( add 15 to both sides )
- 20v = 39 ( divide both sides by - 20 )
v = -
Vietas formula tells us that the product of our two roots is equal to the constant term of a quadratic over the leading coefficient, so:
[tex] r_1r_2=-\frac{-10}{2} \implies 5*r_1=-5 \implies r_1=-1[\tex]
It also tells us that the b term in our quadratic is equal to the negative of the sum of the terms divided by the leading coefficient, so:
[tex] r_1+r_2=-\frac{b}{2} \implies 4=-\frac{b}{2} \implies b=-8 [\tex]
So, one of our roots is 5, the other is -1, and our b value is 8.
Answer:
What is the value of x in the equation?
Step-by-step explanation:
Step-by-step explanation:
thanks but not to losers,.... victory is waiting there for me...
You have to get y by itself. Divide by 7 on both sides to get 1.43x-11=y. Hope this helps! ;)
