Solve.The population of a city decreased from 1,127,000 in 1995 to 936,000 in 2005. What is the percent decrease? Round your answer to the nearest tenth of a percent.
A. 1.7%
B. 20.4%
C. 16.9%
D. 17.5%
Answer: C
Mathematics
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Factor the perfect square trinomial.25x2 - 10x + 1
A. (5x - 1)2 B. (x - 5)2 C. (5x + 1)(5x - 1) D. prime
Mathematics
Solve and check your solutions.- 
x = - 
A. x = 
B. x = - 
C. x = - 
D. x = 
Mathematics
Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.
A. Quadratic; leading coefficient positive B. Quadratic; leading coefficient negative C. Linear
Mathematics
Use the formula for the sum of the first n terms of a geometric sequence.Find the sum of the first 13 terms of the geometric sequence: -4, -12, -36, -108, -324, . . .
A. -3,188,644 B. -3,188,607 C. -3,188,664 D. -3,188,642
Mathematics