Help fast I really need this lol

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.