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Amanda [17]
3 years ago
8

Find the inversewill mark brainliest​

Mathematics
2 answers:
eimsori [14]3 years ago
8 0

Answer:

dat person right

Step-by-step explanation:

eimsori [14]3 years ago
7 0

Answer:

f^{-1} (x) = \sqrt[3]{\frac{1 - 9x^{2} }{x^{2} } }

Step-by-step explanation:

Let f(x) = y

Interchange x and y so

x = \frac{1}{\sqrt{y^{3} + 9 } }

x\sqrt{y^{3} + 9}  = 1

\sqrt{y^{3} + 9 }  = \frac{1}{x}

y^{3}  + 9 = \frac{1}{x^{2} }

y^{3}  =  \frac{1}{x^{2} }  - 9 = \frac{1 - 9x^{2} }{x^{2} }

y = \sqrt[3]{\frac{1 - 9x^{2} }{x^{2} } }

f^{-1} (x) = \sqrt[3]{\frac{1 - 9x^{2} }{x^{2} } }

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A computer program contains one error. In order to find the error, we split the program into 6 blocks and test two of them, sele
Aleksandr-060686 [28]
There are \dbinom62 ways of selecting two of the six blocks at random. The probability that one of them contains an error is

\dfrac{\dbinom11\dbinom51}{\dbinom62}=\dfrac5{15}=\dfrac13

So X has probability mass function

f_X(x)=\begin{cases}\dfrac13&\text{for }x=1\\\\\dfrac23&\text{for }x=0\end{cases}

These are the only two cases since there is only one error known to exist in the code; any two blocks of code chosen at random must either contain the error or not.

The expected value of finding an error is then

\displaystyle\sum_{x=0}^1xf_X(x)=0\times\dfrac23+1\times\dfrac13=\dfrac13
7 0
3 years ago
What are the solutions of the equation (x - 6) (x - 8) =8
enot [183]

Answer:

x=4  x=10

Step-by-step explanation:

(x - 6) (x - 8) =8

We need to multiply out the left side

x^2 -8x -6x+48 = 8

x^2 -14x +48 = 8

Subtract 8 from each side

x^2 -14x +48-8 = 8-8

x^2 -14x+40 =0

We need to factor the left side.  What two numbers multiply to give 40 and add to give -14

-4*-10 = 40

-4+-10 = -14

(x-4) (x-10) =0

Using the zero product property

x-4=0  x-10 =0

x=4  x=10


8 0
3 years ago
40•(420:x-37)=200 помогите решить уравнение
miv72 [106K]
40•(420:x-37)=200 <span>означает 40(\frac{420}{x}-37)=200
</span>
<span>разделите обе стороны на 40
</span><span>
\frac{420}{x}-37=5
</span>
<span>добавить 37 с обеих сторон

\frac{420}{x}=42
</span>
<span>умножить обе стороны на х
420=42x

</span><span>разделите обе стороны на 42
10=x
x=10
</span>
4 0
3 years ago
Number 3?? I can’t figure it out
monitta

divide the total cost by the number of hinges:

Mark's hardware: $28 / 8 = $3.50 per hinge

Steve's Supply: $39 /  11 = $3.45 per hinge.


$3.45 is less than $3.50, so the answer would be C.

7 0
3 years ago
Read 2 more answers
Stanley has $18 to spend on packs of trading cards that cost $1.50 each. The inequality 18≥1.5p represents the number of packs p
V125BC [204]

Answer:

Numbers of packs p is 12

Step-by-step explanation:

Data :

  Money  = $18

 Price of a  card = $1.5

 Equation     :    18 ≥ 1.5p

Solve the equation  for p

       18/1.5  ≥  p

     12 ≥ p

7 0
2 years ago
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