Use a calculator to find the natural logarithm correct to four decimal places.ln 0.000384
A. 3.4157
B. 7.8649
C. -7.8649
D. -3.4157
Answer: C
Mathematics
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Solve the problem.Suppose that 
= 2. Find 
and 
.
A. 4; 2 B. 0; 2 C. 0; -2 D. 2; -2
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Solve the problem.Find the center of mass of the hemisphere of constant density bounded 
and the 
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
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Solve the problem.
A radio telescope has a parabolic surface. If it is 1 m deep and 20 m wide, how far is the focus from the vertex?
A. 5 m B. 25 m C. 1 m D. 100 m
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Multiply.5x9(12x5 + 5x4 + 10)
A. 60x14 + 25x13 + 10 B. 60x14 + 25x13 + 50x9 C. 60x5 + 25x4 + 50 D. 60x14 + 5x4 + 10
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