What is the center and radius of a circle with the equation x^2+y^2+4y+4=36
Idk how to get it to the standard equation of a circle. Thanks in advance

3382-299=3383- ? fill in the blank?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?