In which city is the temperature higher ? Portland- 38°F Boston- 2°C
1 answer:
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Given equation is :
=0
Taking out common we get,
=0
Now solving this we get,
As 11 is not factor-able, we will solve it using the formula,
a=1 b=5 and c=-11
we get,
and
<h3>Answer is 0</h3>
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Explanation:
Logarithms are used to solve exponential equations. Specifically if you have a variable in the exponent, then you use a log to isolate the variable.
If we set the given log expression to x, then we can rewrite it into 8^x = 1. The only value of x that works is x = 0.
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Or put another way,
8^x = 1
8^x = 8^0 ... replace the 1 with 8^0
x = 0 ... the bases are equal (to 8) so the exponents must be equal
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You can use the change of base formula to directly calculate this log