Solve the problem. Round your answer to two decimal places.Scores on a test are normally distributed with a mean of 78 and a standard deviation of 6. What is the standard score for an exam score of 73 ?
A. -0.86
B. -1.2
C. 0.86
D. -0.83
Answer: D
Mathematics
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Change the given quantity to the indicated unit.12 kg = 
mg
A. 0.012 mg B. 12,000,000 mg C. 0.12 mg D. 1200 mg
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Solve the system by graphing.
A. (3, 2) B. (-2, -2) C. (-3, -4) D. (-3, 2)
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State the domain and range in interval notation.f(x) = (x + 5)2 + 8
A. domain: [-8, ?); range: (-?, ?) B. domain: [8, ?); range: (-?, ?) C. domain: (-?, ?); range: [8, ?) D. domain: (-?, ?); range: [-8, ?)
Mathematics
Find the difference. 727 - 154
A. -573 B. 573 C. -881 D. 473
Mathematics