Write the number in scientific notation.0.0000005
A. 5 × 107
B. 5 × 10-6
C. 5 × 10-7
D. 5 × 10-8
Answer: C
Mathematics
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Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round your answer to the nearest decibel.
A. 184 decibels B. 8 decibels C. 70 decibels D. 80 decibels
Mathematics
Solve the equation.
x = 
A. 
B. 
C. {4}
D. {-4}
Mathematics
Subtract and simplify. Write the answer as a mixed number if possible.6
- 3
- 1
A. 2
B. 2
C. 1
D. 1
Mathematics
Estimate the answer by rounding as indicated.Estimate the product by rounding each factor to the nearest ten.767 × 35
A. 26,845 B. 30,800 C. 26,850 D. 800
Mathematics