Evaluate the determinant.
A. 7x2 - 4x
B. 7x2 + 4x
C. -7x2 + 4x
D. -7x2 - 4x
Answer: C
Mathematics
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Perform the indicated operation.x +
A.
B.
C.
D.
Mathematics
Find the missing complex number.(2 - 3i)(?) = 9 + 4i
A. - + 7i
B. +
i
C. - 6 + 7i
D. +
i
Mathematics
Simplify by factoring.
A. 2x2
B. 2xy2
C. 2xy
D. 2x
Mathematics
Find the magnitude R of an earthquake of intensity .
?
?
A. 7.43 B. 6.43 C. 8.43 D. 10.43 E. 9.43
Mathematics