Solve.If the area of a rectangle is 21 square miles and its length is 7 miles, what is its width?
A. 7 mi
B. 
mi
C. 147 mi
D. 3 mi
Answer: D
Mathematics
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Evaluate the cylindrical coordinate integral.
A. 34
B. 68
C. 
D. 
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Find Z for a circuit containing R = 8.2 Kê and xL = 2.4 Kê.
a. 10.6 Kê b. 5.8 Kê c. 10 Kê d. 8.5 Kê
Mathematics
Find the exact value of the expression.
A. 
B. 
C. 
D. 2
Mathematics