(HELP QUICK) A sample of a radioactive isotope had an initial mass of 470 mg in the year 2000 and decays exponentially over time. A measurement in the year 2003 found that the
sample's mass had decayed to 260 mg. What would be the expected mass of the
sample in the year 2013, to the nearest whole number?

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

What is the solution set of the quadratic inequality x^2-5< or equal to 0

What is the prime factorization of 230