Write the number in scientific notation.619.687
A. 6.19687 × 10-1
B. 6.19687 × 101
C. 6.19687 × 102
D. 6.19687 × 10-2
Answer: C
Mathematics
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Find the flux of the vector field F across the surface S in the indicated direction.F = 2x2j - z2k; S is the portion of the parabolic cylinder y = 4x2 for which 0 ? z ? 4 and -2 ? x ? 2; direction is outward (away from the y-z plane)
A. - 
B. 
C. -128
D. 128
Mathematics
Perform the indicated operations in the proper order.3(-4) + 2(4)
A. -1 B. 20 C. 72 D. -4
Mathematics
Solve the absolute value inequality. Write your answer in interval notation.|5y - 4| > -5
A. 
B. 
C. No solution
D. (-?, ?)
Mathematics
Use the quadratic formula to solve the quadratic equation.x2 + 2x - 99 = 0
A. x = -11, 1 B. x = -11, 9 C. x = 11, 9 D. x = 11, -9
Mathematics