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3 years ago

Is there a distance time and rate calculator

Mathematics

1 answer:

babymother [125]3 years ago

4 0

Answer:

yea but its like 100 dollars

Step-by-step explanation:

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Find the inverse <br><img src="https://tex.z-dn.net/?f=f%28x%29%3D%7Be%7D%5E%7B3x%20-%201%7D%20" id="TexFormula1" title="f(x)={e

FromTheMoon [43]

Answer:

$f^{-1}(x)=\dfrac{1}{3}(\ln x +1)$

Step-by-step explanation:

Given function:

$f(x)=e^{3x-1}$

Replace f(x) with y:

$\implies y=e^{3x-1}$

Take natural logs of both sides:

$\implies \ln y = \ln e^{3x-1}$

Apply the Power Log Law $\ln x^n=n\ln x$ :

$\implies \ln y = (3x-1)\ln e$

As $\ln e=1$ then:

$\implies \ln y = 3x-1$

Rearrange to make x the subject:

$\implies 3x=\ln y +1$

$\implies x=\dfrac{1}{3}(\ln y +1)$

Swap x for $f^{-1}(x)$ and y for x:

$\implies f^{-1}(x)=\dfrac{1}{3}(\ln x +1)$

8 0

2 years ago

7 friends have a similar cell phone plans. The price of each plan is $x. 3 of 7 friends pay an extra $4 per month for unlimited

cestrela7 [59]

Answer:

Step-by-step explanation:

7 friends have a similar cell phone plans. The price of each plan is $x. This means that the basic cost of all the plans is $x. The total basic cost for the 7 plans would be

7 × x = $7x

3 of 7 friends pay an extra $4 per month for unlimited text messaging. The total amount paid by the 3 friends would be

3 × 4 = $12

Therefore, the total cost for the 7 plans would be

7x + 12

6 0

3 years ago

A line segment on a number line has its endpoints at -9 and 6. Find the coordinate of the midpoint of the segment.. . A. 1.5. *

Lyrx [107]

By definition, the midpoint is given by:
$m = (\frac{x1+x2}{2}, \frac{y1+y2}{2})$

Part A:
For the line segment we have:
$m = \frac{-9+6}{2}$
$m= \frac{-3}{2}$
$m = -1.5$
Answer:
the coordinate of the midpoint of the segment is:
B. -1.5

Part B:
For line segment HX we have:
$m = (\frac{-1+7}{2}, \frac{3-1}{2})$
$m = (\frac{6}{2}, \frac{2}{2})$
$m = (3,1)$
Answer:
the coordinates of the midpoint of the segment is:
A. (3,1)

4 0

2 years ago

Read 2 more answers

What is the product ?

Stolb23 [73]

3a/a-2
Soory for the handwriting though, did it in a real hurry