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Scrat [10]
3 years ago
9

Given the function f(x) = 0.5(3)x, what is the value of f−1(7)?

Mathematics
2 answers:
padilas [110]3 years ago
8 0

Answer:

The value of the given expression is:

2.402

Step-by-step explanation:

We are given a exponential function f(x) which is represented by:

f(x)=0.5\times 3^x

We are asked to find the value of the inverse function at 7.

i.e. we are asked to find:

f^{-1}(7)

In other words we may say that we are asked to find the value of x when f(x)=7.

i.e.

0.5\times 3^x=7\\\\3^x=\dfrac{7}{0.5}\\\\3^x=14\\\\x\log 3=\log 14\\\\x=\dfrac{\ln 14}{\ln 3}\\\\x=2.402

Hence, the value of f^{-1}(7) is:

2.402

Yuliya22 [10]3 years ago
5 0

Answer:

Step-by-step explanation:

The answer is 2.402.

i know this from taking the test

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Answer:

Step-by-step explanation:

There is no solutions

Hope this helps mark me as brainiest

6 0
4 years ago
Y=7 x=2 what is the value of x when y=21
Margaret [11]
Answer:

<span>y=4.98</span>

Explanation:

First, find the constant of proportionality , k.

<span>y=kx</span>
<span>21=7k</span>
<span>k=3</span>

We now start over and solve for y using the new value of x and the obtained value of k.

<span>y=<span>(3)</span><span>(1.66)</span></span>
<span>y=<span>4.98</span></span>

4 0
3 years ago
Read 2 more answers
What is the solution to 3/4(x+8)=9
grin007 [14]
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7 0
4 years ago
Read 2 more answers
A<br> Find the value of x. Your answer must be exact.<br> 30<br> 9
OLEGan [10]
Tan30=9/x so it will be 9((3)^1/2)
4 0
3 years ago
Read 2 more answers
2.5h= min pls answer me quick pls​
Effectus [21]

Answer:

2.5h = 150 min.

Step-by-step explanation:

An hour is 60 minutes.

A half an hour is 30 minutes.

Two hours = 1 hour + 1 hour = 60 minutes + 60 minutes = 120 minutes

2.5 hours = 2 hours + 1/2 hour = 120 minutes + 30 minutes = 150 minutes

2.5h = 150 min.

Hope this helps.

6 0
3 years ago
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