De acuerdo con el modelo de regresión lineal, jen qué año habría sido de 249,9 segundos el récord mundial masculino de tiempo de carrera de una milla?

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Quadrilateral ghij has coordinates g(5, 1), h(4, -3), i(6, -1), and j(2, 1). if the quadrilateral is reflected over the line y = x, what are the coordinates of h'?