Find the length and direction (when defined) of u × v.u = -5i + 2i , v = i - j

A. 7; 7k
B. 3; -3k
C. 7; -7k
D. 3; 3k


Answer: B

Mathematics

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A.  = 
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Find the perimeter or area of the figure as indicated.Find the area of the square.

A. 24x2 sq cm B. 144x2 sq cm C. 121x2 sq cm D. 48x2 sq cm

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Solve.The formula for converting Fahrenheit temperatures to Celsius temperatures is  Use this formula to solve the problem. In a certain city, the average temperature ranges from  to  Celsius. Use a compound inequality to convert these temperatures to Fahrenheit temperatures. If necessary, round to the nearest tenth of a degree.

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