Si la fuerza con la que la Tierra atrae a un cuerpo de 1 Kg es 9´8 N y el radio de la Tierra es 6370 Km halla la masa de la Tierra (G=6´67·10-11N·m2/Kg2; recuerda: F=G·M·m/r2 y despejando M, M= F·r2/G·m; en la calculadora para introducir 10-11 usa la tecla exp: (10) (exp)(-11)). Aclaración matemática: un exponente o nº elevado negativo significa: 10^-11 = 1/100.000.000.000 = 1/10^11

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)

Use the distance formula to find the distance between (-3,5) and (3,1)