hemos tardado 2 horas y media en recorrer un trayecto de 125km. Si seguimos a la misma velocidad constante, ¿Cuanto tiempo tardaremos si la ruta de regreso es de 225km?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points