Shanti wrote the predicted values for a data set using the line of best for y= 2.55x-3.15. She computed two of the residual values.

What are the values of b?

A= 0.4 and B= -0.15

A= -0.4 and B= 0.15

A = 8.6 and B = 14.25

A = -8.6 and B = -14.25

What could explain what happened when the time was equal to 120 minutes

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.