To use the change of base formula to evaluate log274, we can rewrite it in terms of a known base. Let's use base 10 for this example.
The change of base formula states that for any positive number a, b, and c:
logc(b) = loga(b) / loga(c)
We want to find log274, so we can use base 10 as our known base:
log10(4) / log10(7)
Since log10(4) is not a known value, we can approximate it using a calculator:
log10(4) ≈ 0.602
Similarly, log10(7) is not a known value, so let's approximate it:
log10(7) ≈ 0.845
Now we can substitute these approximations into the change of base formula:
log274 ≈ 0.602 / 0.845 = 0.713
Therefore, the approximate value of log274 using the change of base formula is 0.713.
So the correct response is 0.713.
Use the Change of Base Formula to evaluate log274.(1 point)Responses4.3044.3045.9045.9046.2096.2091.869
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