Amarina is in the shape of a coordinate grid. boat a is docked at (4.2, −2) and boat b is docked at (−5.2, −2). the boats are units apart. a) 6.2 b) 7.2 c) 9.4 d) 13.4

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.