Write the expression in the standard form a + bi.(-7 - 6i)(4 + i)
A. -34 - 31i
B. -22 - 31i
C. -22 + 17i
D. -34 + 17i
Answer: B
Mathematics
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Find the LCM of 2, 3, and 10.
A. 60 B. 150 C. 30 D. 90
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Solve the equation on the interval [0, 2?).sin2 x - cos2 x = 0
A. 
, 
, 
, 
B. 
C. 
, 
D. 
, 
Mathematics
Subtract the polynomials. Express your answer in standard form.12x4 + 8x3 
A. -7x4 + 6x3 B. 31x4 + 10x3 C. 31x4 + 6x3 D. -7x4 + 10x3
Mathematics
Find the mode, if it exists, for the given values.511, 432, 255, 510, 511, 757, 432, 338, 511, 432
A. 511 B. 432, 511 C. 432 D. none
Mathematics