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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Fill in the blank(s) with the appropriate word(s).
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Find the sum of the infinite geometric series, if it exists.-12 - 4 - 
- 
- . . .
A. does not exist
B. - 18
C. 6
D. - 
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Solve and graph. Write the solution in interval notation. 2
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A. 
B. 
C. 
D. 
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