Solve:  
 

A. ?

?


B. ?

?


C. ?

?


D. ?

?


E. ?


Answer: A

Mathematics

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Evaluate. Simplify if possible.-  - 

A. - 
B.
C.
D. - 

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Find all solutions of the equation in the interval [0, 2?).(4 cos x - 2)(4 cos x) = 0

A.
B.
C. 0, , ?
D. 0, , ?, 

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Solve.A store sold 34 lamps on Monday, 18 lamps on Tuesday, and 28 lamps on Wednesday. How many lamps did the store sell in all?

A. 81 lamps B. 80 lamps C. 90 lamps D. 79 lamps

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