The Size of a Human Fetus More Than 12 Weeks

question 24

Short Answer

The size of a human fetus more than 12 weeks old can be estimated by the formula L = 1.53t - 6.7,where L is in centimeters and t is in weeks.An obstetrician uses the length of a fetus,measured in an ultrasound,to determine the approximate age of the fetus and establish a due date for the mother.The formula must be rewritten to result in an age t,given a fetal length L.Use a graphing calculator to graph the resulting equation and verify the y-intercept.

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Definitions:

Indian Lands

Territories inhabited or historically owned by indigenous peoples of the Americas prior to European colonization and often the subject of conflict and negotiation thereafter.

Late Nineteenth Century

Refers to the period from around 1870 to 1900, marked by significant industrial, social, and political changes worldwide.

Great American Desert

A term used in the 19th century to describe the arid region of the United States Great Plains, wrongly perceived as unfit for agriculture.

Peace Policy Era

A period in United States history during which the federal government attempted to reshape its interactions with Native American tribes through negotiation and treaties, aiming for peaceful coexistence and assimilation, most notably during President Ulysses S. Grant's administration.