Solve the equation by completing the square.x2 = 7 - 4x
A. 2 + 
B. -1 ± 
C. -2 ± 
D. -2 ± 2
Answer: C
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Solve the problem. Round your answer to 5 decimal places when necessary.The table shows the leading causes of death for one country in a single recent year. 
Assume a population of 92.5 million.What is the empirical probability of death by accident during a single year?
A. 0.45 B. 0.0049 C. 0.000049 D. 0.00049
Evaluate the integral.
A. 2 ln 2 B. 2 ln 3 C. 4 ln 2 D. -2 ln 2
Simplify the expression. Assume that all variables are positive when they appear.(
+ 
)(
- 
)
A. 8 - z
B. 8 - 2
C. 8 - 2
D. 8z
Graph the equation. Give the domain and range. Identify whether the equation is a function.
= 
A. 
(-?, ?); (-?, -7]; not a function
B. 
(-?, ?); (-?, -1]; not a function
C. 
(-?, ?); [1, ?); function
D. 
(-?, ?); [7, ?); function