The half-life of carbon-14 is:
A. infinite.
B. around 2,000,000 years.
C. close to 1000 years.
D. around 5730 years.
Answer: D
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If Excel estimated the 95 percent confidence interval for a slope coefficient for the price b^ to run from -25.50 to -22.30, which of the following is true?
A) You are 95 percent confident that in response to dollar increase in price, consumers will decrease the quantity demanded by an amount that lies between 22.30 and 25.50. B) You are 95 percent confident that in response to dollar increase in price, consumers will decrease the quantity demanded by an amount greater than 25.50. C) You are 95 percent confident that in response to dollar increase in price, consumers will decrease the quantity demanded by an amount greater than 22..30. D) You are 95 percent confident that in response to dollar increase in price, consumers will increase the quantity demanded by an amount that lies between 22.30 and 25.50.
The Sakha have had to adapt to physical and social changes over the years. Which of the following was a pre-Soviet-era adaptation?
a. consolidation of Sakha subsistence practices into sovkhozi, the agro-industrial state farm operations b. industrialization during the 1950s c. paying iasak, or fur tribute, to colonizers d. land loss due to border changes
Capoeira is a Brazilian art form combining dance, acrobatics, and martial arts
a. True b. False
When errors occur in conversation, people use ___________ to fix them so that the conversation begins flowing smoothly again
Fill in the blank(s) with correct word