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djyliett [7]
3 years ago
10

If f(x) = 1/4x+14, then f-1(x)=​

Mathematics
1 answer:
makvit [3.9K]3 years ago
6 0

Answer:

Step-by-step explanation:

-x+1/4×+14

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true or false: when multiplying radicals, you multiply the radicands together and the numbers outside the radicals together
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You can only multiply numbers that are inside the radical symbols
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3 years ago
How would you do a,b,c,and d
I am Lyosha [343]

a) You are told the function is quadratic, so you can write cost (c) in terms of speed (s) as

... c = k·s² + m·s + n

Filling in the given values gives three equations in k, m, and n.

28 = k\cdot 10^2+m\cdot 10+n\\21=k\cdot 20^2+m\cdot 20+n\\16=k\cdot 30^2+m\cdot 30+n

Subtracting each equation from the one after gives

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Subtracting the first of these equations from the second gives

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Using the next previous equation, we can find m.

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Then from the first equation

[tex]28=100\cdot 0.01+10\cdot (-1)+n\\\\n=37[tex]

There are a variety of other ways the equation can be found or the system of equations solved. Any way you do it, you should end with

... c = 0.01s² - s + 37

b) At 150 kph, the cost is predicted to be

... c = 0.01·150² -150 +37 = 112 . . . cents/km

c) The graph shows you need to maintain speed between 40 and 60 kph to keep cost at or below 13 cents/km.

d) The graph has a minimum at 12 cents per km. This model predicts it is not possible to spend only 10 cents per km.

4 0
3 years ago
Help me out don’t really get this stuff that much
ioda

Answer:

19

Step-by-step explanation:

8 0
3 years ago
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Nady [450]

Answer: $10.40

Step-by-step explanation:

6 0
2 years ago
11, 20, 29, ...<br> Find the 48th term.
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Answer:

434

Step-by-step explanation:

29-20=9

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2 years ago
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