The Point Imperial is the highest point of the Grand Canyon and it is 8,800 feet tall. A professional hiker climbed to the top of one of the rims of the Grand Canyon that is 348 feet below Point
Imperial. The hiker threw a rock upward from that rim with an initial velocity of 18 ft per second.
How many seconds will it take the rock hit the ground? Round your answer to the nearest tenth
of a second.

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

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).

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?