Solve the problem.The population of a town was 30,000 at the beginning of 1970. If the population decreased 400 people per year, how many people lived in the town at the beginning of 1985?
A. 6000 people
B. 24,000 people
C. 24,400 people
D. 23,600 people
Answer: B
Mathematics
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Find the value of each square root by use of a calculator. Each number is approximate.
A. 0.15 B. 0.153 C. 0.245 D. 0.25
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Evaluate the iterated integral.
A. 
ln 4 + 42
B. 45 + 
ln 5
C. 45 + 
ln 5 - 
ln 2
D. 
ln 4 + 
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?Use the Principal Axes Theorem to perform a rotation of axes to eliminate the xy-term in the quadratic equation 
. Identify the resulting rotated conic and give its equation in the new coordinate system.
?
A. ?Ellipse; 
B. ?Hyperbola; 
C. ?Ellipse; 
D. ?Hyperbola; 
E. ?Ellipse; 
Mathematics
The radius of a circle is 5 ft. Find the area of the circle. Give the exact value.
A) 50? ft² B) 5? ft² C) 10? ft² D) 100? ft² E) 25? ft²
Mathematics