Answer:
14.8
Step-by-step explanation:
The answer should be the last one D
Answer:
well, only 87 people were asked. How did they get 482?
also, they should have asked the people in the library.
Answer:
i hope it will help
Step-by-step explanation:
I did not get the equation so I solve it with two methods
For

the discriminant is

there are 3 basic cases of what happens for different discriminants
1. if the discriminant is less than 0, then there are no real zeroes
2. if the discriminant is 0, then it has 1 zero
3. if the discriminant is greater than 0, it has 2 zeroes
so given

a=3,b=-7,c=4
thus the discriminant is

the discriminant is 1. 1 is positive, thus the equation has 2 zeroes because the discriminant is greater than 0
the answer is the equation has two zeroes because the discriminant is greater than 0