Estimate the answer by rounding as indicated.Estimate by rounding to the leftmost digit.
A. 8201
B. 8700
C. 8200
D. 8210
Answer: B
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Find the character of the roots.s2 + 3s + 2 = 0
A. Two different irrational solutions B. Two different imaginary solutions C. Two different rational solutions D. Exactly one rational solution
The table shows the fraction of the world's surface land area taken up by each continent. Use the table to answer the question. Write your answer in simplest form. Continent Fraction of World's Surface Land Area North America 
South America 
Europe 
Africa 
Asia 
style="vertical-align: -17.0px;" /> Australia 
Antarctica 
Find the fractional part of the world's land area within the continents of Australia and Asia.
A. 
B. 
C. 
D. 
Find the nth, or general, term.5, 25, 125, . . .
A. 5n+1 - 20 B. 5 + 20(n - 1) C. 5n D. 5n-1 + 4
Find the exact value under the given conditions.sin ? = - 
, 
< ? < 2?; cos ? = - 
, ? < ? < 
Find sin (? - ?).
A. 
B. 
C. 
D. 