use the exponent function on your calculator (ee or exp) to compute the following.

(5.4 x 10^4) (2.2 x 10^7)
---------------------------------
4.5 x 10^5

1 answer

To compute the expression

\[ \frac{(5.4 \times 10^4) \times (2.2 \times 10^7)}{4.5 \times 10^5}, \]

we can handle the multiplication and division of the numbers and the powers of ten separately.

  1. Multiply the coefficients: \[ 5.4 \times 2.2 = 11.88. \]

  2. Add the exponents of 10: \[ 10^4 \times 10^7 = 10^{(4+7)} = 10^{11}. \]

So the numerator becomes: \[ 11.88 \times 10^{11}. \]

  1. Now, we divide by the denominator \(4.5 \times 10^5\):

    • The coefficients: \[ \frac{11.88}{4.5} \approx 2.64. \]

    • Subtract the exponents of 10: \[ 10^{11} \div 10^5 = 10^{(11-5)} = 10^6. \]

  2. Putting it all together: \[ 2.64 \times 10^6. \]

So the final result is \[ \boxed{2.64 \times 10^6}. \]