Solve the problem.If cos ? = - 
, and 
< ? < ?, then find tan 2?.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Let p represent 7 < 8, q represent 2 < 5 < 6, and r represent 3 < 2. Decide whether the statement is true or false.(~r ? ~q) ? (~r ? q)
A. True B. False
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Solve the equation.y + 
= -4
A. - 
B. -11
C. 
D. - 
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Solve.An earthquake was recorded with an intensity which was 
times as powerful as a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale? The magnitude of an earthquake of intensity I is defined as 
, where Io is a minimum level for comparison.
A. 3.9 B. 0.49 C. 4.9 D. 11.3
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Find the scalar tangential and normal components of acceleration of a particle with position vector r(t) = Figure 3.png)
(cps6t, sin6t, 0).
 multiple choice.png)
Mathematics