Solve the problem.A technician has readings that take  minute each to read and record. How many readings can be completed in 54 minutes?

A. 36 readings
B. 18 readings
C. 20 readings
D. 81 readings


Answer: D

Mathematics

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Solve the formula for the specified variable.d = rt for r

A. r = dt
B. r = 
C. r = 
D. r = d - t

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Use the half-angle formulas to evaluate the given function.cos 

A. 0.2588 B. 0.1951 C. 1.3066 D. -0.9659

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Find the triple scalar product (u x v) ? w of the given vectors.u = 4i + 2j - k; v = 5i + 6j - 2k; w = 9i + 10j - 9k

A. -11 B. -274 C. -78 D. -186

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Add.23 + (-17)

A. -6 B. 6 C. 40 D. -40

Mathematics