The value of c is equal to

a.√82
b.√41
c.√410
d.√841

Multiplying an even number of negative numbers gives an answer that is choose from:

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126