Solve the following equation for x.det
= -1
A. {1}
B. ?
C. {3}
D. {-1}
Answer: A
Mathematics
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Factor completely.x3 + x2 - 81x - 81
A. (x + 1)(x2 - 81) B. (x + 1)(x + 81)(x - 81) C. (x + 1)(x + 9)(x - 9) D. (x - 1)(x2 + 81)
Mathematics
Find the measurement that is the least accurate.
A. 
?
B. 
?
C. 
?
D. 
?
E. The measurements have the same accuracy.
Mathematics
Multiply and simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.x + 13 = 17
A. -4 B. 4 C. -30 D. 30
Mathematics