Which equation illustrates the additive inverse property?
a+b=b+a
axb=bxa
a+0=a
a+(-a)=0

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

Me i'm timed right now! there's 4 answer

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)