Las casas de Verónica y Sandra se ubican en los extremos de una calle que mide 170 m. Mauricio y Natalia viven en la misma calle. Si Mauricio vive a 42 m de la casa de Verónica y Natalia vive a 72 m antes de llegar
a la casa de Sandra, ¿cuál es la distancia entre la casa de Mauricio y la de Natalia. Ayuda ‼️

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

3x + 4y = 5 x- 3y = -7 solve by substitution