SOLUTION: It says to solve and write the answer in scientific notation. Can you please help? (9×10^-3)+(2.4×10^−5)÷0.0012

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Question 1138428: It says to solve and write the answer in scientific notation. Can you please help?
(9×10^-3)+(2.4×10^−5)÷0.0012

Found 2 solutions by Boreal, MathLover1:
Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
Do the second and the third first
2.4 x 10^-5 or 2.4 E -5 (e for exponent)/1.2 E-3, put a decimal between the 1 and 2 and count back 3 to the left so that is 10^(-3) or E-3.
Then divided 2.4/1.2 or 2 and E-5 by E-3 which is E-2, make exponent positive when go across fraction.
so adding 9 E-3 to 2 E-2.
Adding in scientific notation is useful if they have the same exponent, not otherwise.
0.009+
0.02
0.029 ANSWER

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

To write in scientific notation, follow the form:
where is a number between and , but not itself, and is an integer (positive or negative number)


........in case you have this







....both numerator and denominator divide by

-> your answer




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