ASAP PLS 15 POINTS HERE ARE THEY srry capss.. 1. 0.40=? 2. 0.76=? 3. 4.8=? 4. 0.07=? tysm for your help

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)