Solve. Round your answer to three decimal places if necessary.7x = 22
A. 0.63
B. 2.145
C. 3.143
D. 1.588
Answer: D
Mathematics
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Find the LCM of 20 and 16.
A. 80 B. 500 C. 25 D. 320
Mathematics
Write the expression with positive exponents only. Then simplify, if possible.2-3
A. 
B. 
C. -8
D. 8
Mathematics
Provide an appropriate response.
Find the direction in degrees (to the nearest 0.1°) of the vector It (total current) in the given figure. 
A. 51.1° B. 52.1° C. 38.9° D. 37.9°
Mathematics
Choose the graph of the equation.z = 
y - 
y3 - x2y + 
A. 
B. 
C. 
D. 
Mathematics