Identify the following as an experiment or an observational study.At one hospital in 2005, 674 women were diagnosed with breast cancer. Five years later, 88% of the Caucasian women and 83% of the African American women were still alive.
A. Experiment
B. Observational study
Answer: B
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Solve the problem.When the Scott Pearson Company's stock increased in value from $100.00 per share to $125.00 per share, the company reported to its shareholders that their stocks had increased in value by 
The stock price remained fixed at $125 for a few months, but then it fell back down to $100.00 per share. At that time, the Scott Pearson Company reported to the shareholders that the stock had decreased by 
Since the price increase and decrease are exactly the same, should not the percent increase and the percent decrease be equal? Explain.
What will be an ideal response?
Find the equation of the line tangent or normal (as indicated) to the given curve with the given slope.y = 
, normal line with slope -1
A. y = x + 
B. y = x + 
C. y = -x + 
D. y = x + 
Solve the equation.x(x - 30) = -225
A. {30} B. {15} C. {-15} D. {15, -15}
Graph the quadratic equation.y = -x2 + 4x + 4 
A. 
B. 
C. 
D. 