Simplify
Mathematics
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Solve the problem.The population of a town was 35,200 at the beginning of 1970. If the population decreased 300 people per year, how many people lived in the town at the beginning of 1985?
A. 30,400 B. 4500 C. 30,700 D. 31,000
Mathematics
Use the Pythagorean identity.Find sin ?, given that cos ? = 
and 
? ? < 2?
A. - 
B. - 
C. - 
D. - 
Mathematics
Convert the angle measures to degrees, minutes, and seconds. Round seconds to whole units, if necessary.53.79°
A. 53°47'79'' B. 53°47'24'' C. 53°47'30'' D. 53°47'12''
Mathematics
Add or subtract. Simplify by combining like radical terms, if possible. Assume all variables and radicands represent nonnegative numbers.10 
+ 7 
A. 17 
B. -3 
C. 17 
D. 17 
Mathematics