Radio signals travel at a rate of 3x10^8 meters per second. how many seconds would it take for a radio for a signal to travel from a satellite to the surface of earth if the satellite is orbiting at a height of 4.2x10^7 meters? (hint: time is distance divided by rate.) a. 1.26x10^16 seconds b. 1.26x10^15 seconds c. 1.4x10^1 seconds d. 1.4x10^-1 seconds

What is the binomial expansion of (2x-3)^5

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.