Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Correct
B. Incorrect; should be 32 R777
C. Incorrect; should be 27 R145
D. Incorrect; should be 27 R44
Answer: A
Mathematics
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Change the complex number to rectangular form.(cos 20° + j sin 20°)
A. 0.940 + 0.342j B. 20.000 + j C. 0.408 + 0.913j D. 0.342 + 0.940j
Mathematics
Integrate the given expression.
A. 
x0/3 + C
B. 3x5/3 + C
C. 
x3 + C
D. 
x5/3 + C
Mathematics
Simplify the algebraic expression by combining like terms.
x - 
x + 
x
A. 
x
B. 
x
C. - 
x
D. 
x
Mathematics
Round the number as specified.21.3 to the nearest ten
A. 21.3 B. 20 C. 19 D. 21
Mathematics