Mathematics, 24.08.2019 14:00 61497
Need with a problem. for some reason i can not seem to get it correct. thinking my formula is wrong. here's the problem:
assume that there are approximately 140x10^9 stars in our galaxy.
our galaxy is 50,000 light years from the center to the edge, but just 1,000 light years thick. it's shaped like a thin disk or cylinder. if the stars were distributed equally throughout the galaxy, how many stars would you expect to find in one cubic light year?
i thought it would be pi*r^2*l. then divide that by the number of stars. what am i doing wrong? , been 20 years since i had to do math like this!
Answers: 3
Mathematics, 21.06.2019 18:00, xojade
Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.
Answers: 1
Mathematics, 21.06.2019 18:00, kellysmith45
The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second
Answers: 3
Need with a problem. for some reason i can not seem to get it correct. thinking my formula is wrong...
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