15. the velocity of an object fired directly upward is given by v = 20 – 9.8t, where t is time in seconds. write an inequality which could be used to describe when the velocity will be between 10 and 20 meters per second. (see ex. 8) explain to verify your choice. 10 > 20 – 9.8t > 20 10 > 20 – 9.8t or 20 – 9.8t < 20 10 < 20 – 9.8t or 20 – 9.8t < 20 10 < 20 – 9.8t < 20

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?