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algol13
2 years ago
5

Select the correct answer. What is the value of x? log^2(x+ 7) = 2

Mathematics
1 answer:
Delvig [45]2 years ago
3 0
Answer: x=-3

Solve the equation by rewriting in exponential form using the definition of a logarithm and simplifying.
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If g(x) = 3x − 4, what is the value of g−1(g(13))?
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The function g(x) = 3x-4 is a linear function. Therefore the inverse does exist (which is also linear)

Because we have an inverse, this means we can use the rule 
g^{-1}(g(x)) = x

Replace x with 13
g^{-1}(g(x)) = x
g^{-1}(g(13)) = 13

The answer is choice D

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A kite with a 100 foot-long string is caught in a tree. When the full length of the string is stretched in a straight line to the ground, it touches the ground a distance of 30 feet from the bottom of the tree. Find the measure of the angle between the kite string and the ground.

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4x + 2

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Step-by-step explanation:

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The simplest way to solve this is to subtract 81 from both sides:

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