(-/1 Points) DETAILS LARCOLALG10 5.5.022.MI. Find the missing value for the radioactive isotope. (Round your answer...
9. [-14 Points] DETAILS SPRECALC7 4.6.017. This exercise uses the radioactive decay model. The half-life of radium-226 is 1600 years. Suppose we have a 28-mg sample. (a) Find a function m(t) = moz-th that models the mass remaining after t years. m(t) = (b) Find a function m(t) = moet that models the mass remaining after t years. (Round your value to six decimal places.) m(L) = (c) How much of the sample will remain after 2500 years? (Round your...
SAlgTrig4 4.6.021.MI 5. -/1 points This exercise uses the radioactive decay model. If 250 mg of a radioactive element decays to 240 mg in 60 hours, find the half-life of the element. (Round your answer to the nearest whole number.) hr Need Help? Read It Watch It Master I Talk to a Tutor
Need Help? 15. (-/1 Points] DETAILS LARCOLALG10 4.3.035. Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. Vertices: (+3, 0); foci: (+2,0) Need Help? Read 16. (-/1 Points) DETAILS LARCOLALG10 4.3.037. Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. Foci: (+5, 0); major axis of length 16 Need Help? Read Type here to search о неа
An initial amount of 100 g of the radioactive isotope thorium-234 decays according to Q(t) = 100e -0.02828t where t is in years. How long before half of the initial amount has disintegrated? This time is called the half-life of this isotope. (Round your answer to one decimal place.) yr
-11 points SHIPPS14 10..018. What is the half-life of a radioactive isotope If the activity of a sample drops from 6,560 cpm to 205 cpm in 24.0 min? min Need Help? Read It
9. [-/1 Points) DETAILS LARPCALC10 10.6.052.MI. Eliminate the parameter and obtain the standard form of the rectangular equation. Circle: x = h + r cosa, y = k + r sin a Need Help? Read it Watch It Master it Submit Answer
1. 1. Iodine-131 is a radioactive isotope. After 8.00 days, 50.2% of a sample of 131I remains. What is the half-life of 131I? 2. The half-lives of different radioisotopes are given in the table below. If the initial amount of potassium-44 is 9.2 g, how much potassium-44 is left in the body after 44 minutes? 2. 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 59.9 g of 32P, how much 32P was present...
Question 18 0 out of 1 points A radioactive isotope decays with a half-life of 8.02 minutes. If a sample of the isotope initially contains 5.00 g, what mass remains after 6.01 minutes? Selected Answer. 3.13 g Answers 2.979 1.139 1.87 g 3.139
7. [-12 Points] DETAILS TANAPCALCBR10 3.1.014.MI. Find the derivative of the function by using the rules of differentiation. = You f'(u) = Need Help? Read It Master It Talk to a Tutor
2. [0/5 Points] DETAILS PREVIOUS ANSWERS LARCALCET7 5.1.018. Find the indefinite integral and check your result by differentiation. (Use C for the constant of integration.) 1 dx |(vx+ 5*) )(2x+1)+ Need Help? Read it Talk to a Tutor 3. [-15 Points) DETAILS LARCALCET7 5.1.038.MI. Find the particular solution of the differential equation that satisfies the initial condition(s). g'(x) = 2x2, g(-1) = 5 g(x) - Need Help? Read It Master it Talk to a Tutor Submit Answer 4. [-15 Points)...