Make 24 using the numbers 1,2,5,9 use of four operations to solve

Mathematics

1 answer:

garri49 [273]3 years ago

7 0

Answer:

(9 x 2) + 5 + 1 = 24

Step-by-step explanation:

First, I tried to multiply the 2 numbers that would get me the closest, but not past, 24. Which was 9 and 2. I thought it would take more time for me to continue but, then the other 2 numbers were very easy. For questions for this, sometimes just do random things until you get the answer.

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Bond [772]

Answer:

3log(10) -2log(5) ≈ 1.60206
no; rules of logs apply to any base. ln(x) ≈ 2.302585×log(x)
no; the given "property" is nonsense

Step-by-step explanation:

The given expression expression can be simplified to ...

3log(10) -2log(5) = log(10^3) -log(5^2) = log(1000) -log(25)

= log(1000/25) = log(40) . . . . ≠ log(5)

≈ 1.60206

Or, it can be evaluated directly:

= 3(1) -2(0.69897) = 3 -1.39794

= 1.60206

The properties of logarithms apply to logarithms of any base. Natural logs and common logs are related by the change of base formula ...

ln(x) = log(x)/log(e) ≈ 2.302585·log(x)

The given "property" is nonsense. There is no simplification for the product of logs of the same base. There is no expansion for the log of a sum. The formula for the log of a power does apply:

$\log(a)\log(b)=\log(a^{\log(b)})=\log(b^{\log(a)})$