-2x^2+50x+40=0
-2*(x^2-25x-20)=0
x^2-25x-20=0
complete square:
x^2-25x-20+156.25^2=0+156.25
x^2-25x+156.25^2=20+156.25
(x-12.5)^2=176.25
x-12.5=+/-sqrt(176.5)
x=12.5+/-sqrt(176.5)
Answer:
72 & tends to increase
Step-by-step explanation:
just took the test
Answer:
I would say C
Step-by-step explanation:
Since two negatives make a positive
*Answer:*
False
*Explanation:*
In a function, an input can only have one output per term. Therefore, each domain (x-variable) can have only one range (y-variable). On the other hand, different domains can map to the the same range.