The speed-tine graph shows the first 30 minutes of another train journeythe distance travelled is 100 kmthe maximum speed of the train is v km/hi. find the value of vii. find the acceleration of the train during the first 5 minutes. give your answers in m/s

Guys i really need or i have to stay late up night

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?