Mathematics, 19.03.2021 07:50 krlx
Element X is a radioactive isotope such that every 21 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 1800 grams, how much of the element would remain after 28 years, to the nearest whole number?
Answers: 1
Mathematics, 21.06.2019 17:40
Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882
Answers: 1
Mathematics, 21.06.2019 18:00
What is the rate of change of a line that passes through (2,-5) and (6,-2)?
Answers: 2
Mathematics, 22.06.2019 01:00
(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.
Answers: 1
Mathematics, 22.06.2019 01:50
Algebraically prove that a clockwise and counterclockwise rotation of 180° about the origin for triangle abc are equivalent rotations.
Answers: 2
Element X is a radioactive isotope such that every 21 years, its mass decreases by half. Given that...
History, 30.07.2019 17:50
Chemistry, 30.07.2019 17:50
Social Studies, 30.07.2019 17:50
Spanish, 30.07.2019 17:50
English, 30.07.2019 17:50
Mathematics, 30.07.2019 17:50
Mathematics, 30.07.2019 17:50
Health, 30.07.2019 17:50