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Strike441 [17]
2 years ago
10

F(x) = 3x + 1 and f-1 = f-1 = x-1 / 3 then f -'(7) =

Mathematics
1 answer:
Nutka1998 [239]2 years ago
7 0

Answer:

2

Step-by-step explanation:

f^-1 (7) = \frac{x-1}{3} = \frac{7-1}{3} = \frac{6}{3} = 2

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30% of the cars in a parking lot are green. If there 21 green cars, how many cars are parked in the parking lot?
tatyana61 [14]

Answer:

70 cars

Step-by-step explanation:

Let x cars are parked in the parking lot.

30\% \: of \: x = 21 \\  \\  \frac{30}{100}  \times x = 21 \\  \\ x = 21 \times  \frac{100}{30}  \\  \\ x =  \frac{2100}{30}   \\  \\ x = 70 \:

70 cars are parked in the parking lot.

7 0
3 years ago
You are considering two job offers. The first job pays $8.50 per hour. The second job pays $7.00 per hour plus $0.25 per unit pr
Sauron [17]

Answer:

7

Step-by-step explanation:

you just keep counting up and you would get $8.75 will be the money you get but 7 times you have to produce

4 0
3 years ago
Please i need help !!!!!
BaLLatris [955]

Answer:

C

Step-by-step explanation:

If the object figure was reflected along the y-axis, it would've ended up on the third quadrant (meaning the region of the graph where the x and y values are both negative). Moving the image down 2 units would cause it to be at a lower level than the image of M'.

The rest of the options are all correct.

4 0
3 years ago
Two birds sit at the top of two different trees. The distance between the first bird and a bird-watcher on the ground is 14.1 fe
Harman [31]
Use the trig ratio which gives you the most information. Here we have opposite and hypotenuse relative to angle x, so think sin( x ) = 14.1 / 27.9<span>Now we want to solve for x, but x is stuck inside the sine function
So how do we do this?
We can 'undo' the sine function by using the inverse sine. apply the inverse Sin to both sides of the equation.
sin^-1 ( sin(x) ) = sin^-1 ( 14.1 / 27.9)
the left side 'cancels' , leaving you with x
x = sin^-1 ( 14.1 / 27.9)</span><span>Now you need a calculator.
Make sure you are in degree mode.
Calculators can give you answer in radian or degree.
If you get a decimal answer, you are probably in radian mode.
Round up if you want nearest hundredth
30.3563 ≈ 30.36
Round up again if you want nearest tenth
30.36 ≈ 30.4
Hope this helps! :)


</span>
7 0
3 years ago
BRAINLIEST TO CORRECT QUICK
zloy xaker [14]

Answer:

10.75 , 10 (6/24),13/20,-10(6/25)

6 0
3 years ago
Read 2 more answers
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