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Lisa [10]
3 years ago
13

Given the function f(x)=3^x, find the value of f^-1(27)

Mathematics
1 answer:
Shalnov [3]3 years ago
7 0

This is asking you to solve the equation ...

... 27 = 3^x

You can use logarithms to find

... log(27) = x·log(3)

... log(27)/log(3) = x = 1.43136376.../0.47712125...

... x = 3

Or, you can use your knowledge of small cubes and match exponents.

... 3^3 = 3^x

... 3 = x

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Line w is steeper than line t and has a y-intercept that is below the y-intercept of line t. Which function could be represented
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Answer:

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3 years ago
Multiply (−4)(−2)(−5)<br><br> A. -40<br><br> B. -8<br><br> C. 8 <br><br> D. 40
wlad13 [49]
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8 0
3 years ago
What is the equation in slope intercept form for (2,5) (3,12)
kondaur [170]

Slope formula: y2-y1/x2-x1

= 12-5/3-2

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3 years ago
Combine Like Terms
Mazyrski [523]

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Step-by-step explanation:

5 0
2 years ago
Which statement best describes f(x)= -2 √x-7 +1 –6 is in the domain of f(x) but not in the range of f(x). –6 is not in the domai
Archy [21]

Answer:

B. -6 does not belong to the domain but belongs to the range of f(x).

Step-by-step explanation:

We have the function, f(x)=-2\sqrt{x-7}+1.

So, the domain of the function is obtained when x-7\geq 0 i.e. x\geq 7

That is, the domain is {x | x≥ 7}.

Now as we have,

x\geq 7 → x-7\geq 0 → \sqrt{x-7} \geq 0 → -2\sqrt{x-7} \leq 0 → -2\sqrt{x-7}+1 \leq 1.

That is, f(x)\leq 1

Thus, the range of the function f(x) is {y | y≤ 1}.

Thus, we can see that,

-6 does not belong to the domain but belongs to the range of f(x).

5 0
3 years ago
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