Hello :
x²+x - 2 =0
a=1 b=1 c = -2
<span>The sum of the roots is : S = -b/a
</span>S = - 1/1 = -1
d1 = 51(t)
d2 = 71(8 - t)
d1 + d2 = 508
and now you just have to solve for t.
I believe it is A. Hope this helps.
Answer:
4000
Step-by-step explanation:
Out of their sample half of the people are in favor meaning that half of the total are also in favor and half of 8000 is 4000
I hope this helps and please don't hesitate to ask if there is anything still unclear!