Find the simplified form of the expression. give your answer in scientific notation. (9 x 10 5)(6 x 10 -7) a. 5.4 x 10 -34 b. 1.5 x 10 -1 c. 5.4 x 10 -1 d. 1.5 x 10 -34

We have that exponents satisfy
Now we get: by associativity of multiplication.
This is equal to: by the property we stated above, for a=10. Scientific notation requires that the coeeficient in fron tof the power of 10 is between 1-10 and thus since 54=10*5.4, we have that the expression is equal to: 5.4*10*=. Hence the correct answer is C

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