Simplify the expression. Assume that all variables are positive when they appear.4
- 3
A. 24
B. 0
C. 12
- 3
D. cannot simplify
Answer: B
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Multiply. Assume that no radicands were formed by raising negative numbers to even powers.
(
+ 
)
A. 
+ 
B. 15
C. 5 + 
D. 
+ 
Solve the problem. Round your answer to two decimal places.Scores on a test are normally distributed with a mean of 118 and a standard deviation of 15. What is the exam score corresponding to a standard score of 1.92?
A. 118.13 B. 89.2 C. 146.8 D. None of the above
Evaluate the expression for the given values of the variables.x + yz for x = 
, y = 
, z = 
A. 
B. 
C. 
D. 
Graph the parabola. Identify the vertex, axis, domain and range.f(x) = -x2 + 2x - 4
A. Vertex: (1, -7); Axis: x = 1;
Domain: (-?, ?); Range: [-5, ?)
B. Vertex: (1, -3); Axis: x = 1;
Domain: (-?, ?); Range: (-?, -3]
C. Vertex: (-1, -5); Axis: x = -1;
Domain: (-?, ?); Range: [-5, ?)
D. Vertex: (1, -7); Axis: x = 1;
Domain: (-?, ?); Range: [-5, ?)