Para construir una presa quieren utilizar cilindros de 50 cm de largo colocados en vertical y en serie. La presa tiene que medir 300 m de longitud. Si cada cilindro tiene un radio de 30 m, ¿cuántos cilindros se necestarán? ¿Qué grosor tendrá la presa? ¿Y qué volumen?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is