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Katyanochek1 [597]
3 years ago
15

If f(x) = 1/3x+13, then f^-1(x) =??​

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Step-by-step explanation:

Given

f(x) = 1/3x + 13

f^-1(x) = ?

Now

Let y = f(x)

or y = 1/3x + 13

Interchanging the role of x and y

x = 1/3y + 13

x - 13 = 1/3y

y = <u>x </u><u>-</u><u> </u><u>1</u><u>3</u>

3

Therefore f^-1(x) = <u>x </u><u>-</u><u> </u><u>1</u><u>3</u><u> </u>

3

Hope it will help you.

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Need hep with this question​
choli [55]

Answer:

V= -2000t + 20000

Step-by-step explanation:

Let m be the slope of our function :

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  • so our function is V= -2000t + b
  • b is the intitial price so b = 20000
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Let's check :

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6 0
3 years ago
A production plant cost-control engineer is responsible for cost reduction. One of the costly items in his plant is the amount o
Ann [662]

Answer:

248.96

Step-by-step explanation:

From this regression output we have the MS Residual or mean squared error to be equal to 61983.1

the question requires us to find the standard error of the estimate. The standard error of the estimate can be gotten by finding the square root of the MSE.

\sqrt{61983.1}

= 248.96

the standard error of the estimate = 248.96

thank you!

6 0
3 years ago
A 10-yr-old competes in gymnastics. For several competitions, she received the following "All-Around" scores: 35.5, 36.3. 36.6,
Delicious77 [7]

Answer:

The child needs a score of 37.2 to move up to the next level of the competition.

Step-by-step explanation:

The mean is the sum of all scores divided by the number of competions. So

M = \frac{S}{T}

In which S is the sum of all her scores and T is the number of competitions.

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Which means that T = 5

She has to get a mean of at least 36.5, so M = 36.5

Her scores are: 35.5, 36.3. 36.6, and 36.9. Her last score, i am going to call x. So

S = 35.5 + 36.3 + 36.6 + 36.9 + x = 145.3 + x

The child needs a score of _____ to move up to the next level of the competition.

This score is x. So

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3 0
3 years ago
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allochka39001 [22]
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6 0
3 years ago
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Zinaida [17]

Answer:  \sqrt{\frac{9}{4} }

Step-by-step explanation:

This is what it is as a mixed number

\sqrt{2.25}

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If you want it written in exponential form it would look like this:

(\frac{9}{4}) ^{\frac{1}{2} }

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