Evaluate the expression.- 
A. - 
B. -18
C. 18
D. 
Answer: B
Mathematics
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Find the coefficient and degree of the monomial.-18xy
A. coefficient: 2, degree: -18 B. coefficient: 18, degree: 1 C. coefficient: -18, degree: 1 D. coefficient: -18, degree: 2
Mathematics
Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4k; v = 4i - 8j + 8k; w = 6i - 10j - 7k
A. -1092 B. 28 C. -420 D. -876
Mathematics
Find the exact value of the expression.sin (-2040°)
A. 
B. -1
C. 
D. 
Mathematics
Perform the calculation. Express the answer in degree-minutes-seconds format.214°33' + 57°44'
A. 272°77' B. 18°17' C. 272°17' D. 18°77'
Mathematics