Answer:
I think PR = 20 but I'm not sure
Answer:
Step-by-step explanation:
if the discriminate is 0, it means that both roots are the same. Not only that, but it also means that the roots are real. I would pick D, but realize that that is the expected answer and the answer could be B, depending on how the person writing the problem thinks about it.
Answer:

]
Step-by-step explanation:
The given inequality is ;

Multiply through by 8 to clear the fraction;

Expand;

Group similar terms;


Answer:
r=0.5 or 1/2
Step-by-step explanation:
if you multiply 0.5 to each Xs you can find out why r is 0.5