Find the sum of the sequence.
A. 176
B. 56
C. 120
D. 88
Answer: A
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Solve the problem.The enrollment at State University for 2000 was 18 thousand students. The projected enrollment for 2006 is 28 thousand students. Use the midpoint formula to estimate the enrollment for 2003.
A. 46 thousand students B. 10 thousand students C. 23 thousand students D. 36 thousand students
Multiply. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 
Solve the problem.The farther someone is from a light source, the less intense its light. The equation I = 
approximates the light intensity from light source Y and I = 
approximates the light intensity from light source Z, where d is measured in meters and I is measured in watts per square meter. Find an expression for the sum of the intensities of light from sources Y and Z.
A. 
B. 
C. 
D. 
Evaluate the expression.-
A. ±20 B. -20 C. 20 D. 0