Subtract.-7.6 - (-6.1)
A. 13.7
B. -1.5
C. 1.5
D. -13.7
Answer: B
Mathematics
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Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Mathematics
Perform the indicated operations and write the result in standard form.
A. -6 - i
B. -6 + i
C. 6 + i
D. -6 + i
Mathematics
Find the length and direction (when defined) of u × v.u = 2i + 2j - k, v = -i + k
A. 9; 
i - j - 
k
B. 3; -
i + j - 
k
C. 3; 
i - j + 
k
D. 9; 
i - j + 
k
Mathematics
Determine the order of the matrix.
A. 1 × 4 B. 4 C. 1 D. 4 × 1
Mathematics