Look at picture 9. David would like to meet a friend at the hallway point between his home and the library. What is the location of the midpoint between David's home and the library?
10. What is the distance between the park and the library?
11. What is the distance between David's home and the park?

What is the number 321,000,000 in scientific notation? also what is the number? ?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

The weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to ac voltage. the values of the parameters depend on the voltage and temperature; suppose α = 2.5 and β = 190. (a) what is the probability that a specimen's lifetime is at most 250? less than 250? more than 300? (round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) what is the probability that a specimen's lifetime is between 100 and 250? (round your answer to four decimal places.) (c) what value is such that exactly 50% of all specimens have lifetimes exceeding that value? (round your answer to three decimal places.) hr