The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibers extend from the centromeres. Some fibers cross the cell to form the mitotic spindle. The nuclear membrane dissolves, marking the beginning of prometaphase.
Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.
It created jobs for the US and increased employment and incomes as well and also lowered prices
Answer:
All of the countries in South America are greatly affected by poverty to some extent. From 1999 to 2010, poverty dropped from 43.8% to 31.8%. As of October 2019, the countries that have the highest rates of poverty per population in South America are Suriname, Bolivia, Guyana, and Venezuela. All of these countries are trying to reduce poverty, with varying degrees of effort and success. However, in recent years most South American countries have experienced political shifts. This has led to improvements in some countries. In general most South American economies have taken action I.E. stronger economic regulations, foreign direct investments and implementation of micro- economic policies to reduce poverty and improve the life quality of the people.
Explanation:
