A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive substance. After 33 hours, 95 mg of the substance remains.
How many milligrams will remain after 51 hours?
mg
Give your answer accurate to at least one decimal place.
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Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.