Billy wanted to write a ratio of the number of apples to the number of peppers in his refrigerator. he wrote 1: 3. did billy wrote the ratio correctly? explain your answer.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

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

What is the difference between the equations of a vertical and a horizontal line?