What is the standard deviation of the data?

4
8
12
24

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

Which expression gives you the distance between the points (5,1)and(9,-6)