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7(10^log4.5) solve the expression without using a calculator

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Answer: To solve the expression 7(10^log4.5) without using a calculator, we can simplify it using properties of logarithms and exponents.

Recall the property of logarithms: log(a^b) = b * log(a).

Since log(4.5) is the exponent to which we raise 10 to get 4.5, we can rewrite 10^log(4.5) as just 4.5:

10^log(4.5) = 4.5.

Now, the expression becomes:

7 * 4.5.

Finally, compute the product:

7 * 4.5 = 31.5.

So, the value of the expression 7(10^log4.5) is 31.5.

User Gavin Niu
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