Express the number in decimal notation.4.57 × 10-4
A. 0.0000457
B. 0.000457
C. 0.00457
D. -457,000
Answer: B
Mathematics
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Find the volume of the indicated region.the region bounded by the coordinate planes and the planes 
, 
A. 
B. 
C. 243
D. 
Mathematics
Determine whether the equation has real number solutions.3 + 6z2 = -8z
A. Real solutions B. No real solutions
Mathematics
Solve the problem.The mass of one oxygen molecule is 5.3 × 10-23 gram. Find the mass of 2000 molecules of oxygen. Express the answer in scientific notation.
A. 1.06 × 10-20 g B. 1.06 × 10-18 g C. 1.06 × 10-19 g D. 1.06 × 10-21 g
Mathematics
Simplify the expression by using the order of operations.78 - 6 ? 5 ? 2
A. 65 B. 720 C. 96 D. 18
Mathematics