Answer:
The sum of the roots is 0.5
Step-by-step explanation:
<u><em>The correct question is</em></u>
What is the sum of the roots of 20x^2-10x-30
we know that
In a quadratic equation of the form
The sum of the roots is equal to
in this problem we have
so

substitute
<u><em>Verify</em></u>
Find the roots of the quadratic equation
The formula to solve a quadratic equation is equal to


substitute





The roots are x=-1 and x=1.5
The sum of the roots are
----> is ok
Answer:
598=194+8x
Step-by-step explanation:
To solve you would subtract 194 from its self and 598
598=194+8x
-194 -194
404=8x
then you would divide 8 from it's self and 404
which would make it 50.5
(but you cant buy half a package of spoons so realistically it'd be 50 or 51.
hope this helped :)
Answer:
x+y=-2
7x-4y=8
Step-by-step explanation:
The slope on a vertical line will be 0
There are four gray rectangles in the graph, showing 2 different probabilities. Add together the areas of the two rectangles located on the right side:
0.35+0.05 = 0.40 (answer)