A certain radioactive substance has a half-life
of 2,000 years. How much of the radioactive
substance would remain after 8,000 years if
an initial sample had 40.0 grams of the
substance?

Of four points are collinear, they are also coplanar

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.

If cos(θ)=2853 with θin q iv, what is sin(θ)?