Express the number in scientific notation.0.0000004
A. 4 × 10-6
B. 4 × 10-8
C. 4 × 10-7
D. 4 × 10-9
Answer: C
Mathematics
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Plot the parametric surface over the indicated domain.r(u, v) = ui + 2vj + (5 - u2 - v2)k; 0 ? u ? 2, 0 ? v ? 1
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.
2
A. 
B. 
C. 
D. 2
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Find the least common multiple of the pair of polynomials. x2+ 5x+ 6, x2- 4x- 12
A. (x + 3)(x + 2) B. (x - 3)(x - 2)(x - 6) C. (x + 3)(x + 2)(x - 6) D. (x + 2)(x - 6)
Mathematics
Graph the inequality.4x + y ? 2
A. 
B. 
C. 
D. 
Mathematics