SOLUTION: Express (4.5*10^4) * (6.2*10^3) in scientific notation is the answer 27.9 * 10^7

Algebra ->  Exponents -> SOLUTION: Express (4.5*10^4) * (6.2*10^3) in scientific notation is the answer 27.9 * 10^7      Log On


   



Question 1074492: Express (4.5*10^4) * (6.2*10^3) in scientific notation
is the answer 27.9 * 10^7

Found 2 solutions by KMST, Fombitz:
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!

Scientific notation requires that the number multiplied times the power of 10 be at least 1, but less than 10.
So, 27.9%2A10%5E7 is not in scientific notation,
and you have to "fix it" as shown above.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
No but you are close.
Scientific notation usually means the mantissa or significand (the first part) is between 1 and 10.
Since yours is 27.9, you need to modify it.
27.9=2.79x10%5E1
So then,
+%284.5x10%5E4%29+%2A+%286.2x10%5E3%29=+2.79x10%5E1%2A%2810%5E7%29
+%284.5x10%5E4%29+%2A+%286.2x10%5E3%29=+2.79x10%5E8