Write the number in scientific notation.0.000411
A. 4.11 × 10-3
B. 4.11 × 104
C. 4.11 × 10-5
D. 4.11 × 10-4
Answer: D
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Solve the problem.The half-life of a radioactive element is 130 days, but your sample will not be useful to you after 80% of the radioactive nuclei originally present have disintegrated. About how many days can you use the sample?
A. 297 B. 312 C. 302 D. 287
Solve the equation.8 = z + 2
A. {-10} B. {10} C. {6} D. {-6}
Determine whether the two systems of linear equations yield the same solutions. If so, find the solutions using matrices.
a. x = 6, y = 3, z = –1
b. x = –6, y = –3, z = –1
c. x = 3, y = –1, z = –6
d. The systems yield different solutions.
Provide an appropriate response..Give a definition or an example of the word or phrase. Open interval linear inequality
What will be an ideal response?