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Maths Puzzle
Numerical Ability
what is a^2+8a?
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book Other Question
when the sum of 3.0 and 5.0 is subtracted from the product of 3.0 and 5.0, what is the difference?(the answers are....23.0, 20.0, 7.0, or none of these)
The decibel level of sound is given by D= 10log ( I/10^−12), where I is the
sound intensity measured in watts per square meter. Find the
decibel level of a whisper at an intensity of 5.4 × 10-10 watts per