If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.
A. -1.38
B. 1.50
C. 1.38
D. -1.50
Answer: A
Mathematics
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Evaluate the integral.
dz
A. csc 
+ C
B. - 
csc 
+ C
C. -cot 
+ C
D. -csc 
+ C
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Simplify the exponential expression.-4-3
A. - 
B. 
C. 64
D. -64
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Let x be a number. Translate the expression into an English phrase.x - 72
A. Subtract a number from 72 B. 72 multiplied by a number C. Subtract 72 from a number D. The ratio of 72 and a number
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Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes B. Yes; no C. No
Mathematics