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Viktor [21]
3 years ago
14

Need help fast 3[(5 − 2)3 + 4]

Mathematics
2 answers:
horsena [70]3 years ago
8 0
The answer should be 63
tamaranim1 [39]3 years ago
3 0
3[(5-2)3+4] = [39]
The answer is {39}
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g Consider writing onto a computer disk and then sending it through a certifier that counts the number of missing pulses. Suppos
mario62 [17]

Answer:

a) P(1) = 0.1637

b) P(x\geq 2) = 0.0176

c) E(x) = 0.2

Step-by-step explanation:

If X follows a poisson distribution, the probability that a disk has exactly x missing pulses is:

P(x)=\frac{e^{-m}*m^x}{x!}

Where m is the mean and it is equal to the value of lambda. So, replacing the value of m by 0.2, we get that the probability that a disk has exactly one missing pulse is equal to:

P(1)=\frac{e^{-0.2}*0.2^1}{1!}=0.1637

Additionally, the probability that a disk has at least two missing pulses can be calculated as:

P(x\geq 2)=1-P(x

Where P(x.

Then, P(0) and P(x\geq 2) are calculated as:

P(0)=\frac{e^{-0.2}*0.2^0}{0!}=0.8187\\P(x\geq 2) = 1 - (0.8187 + 0.1637)\\P(x\geq 2) = 0.0176

Finally, In the poisson distribution, E(x) is equal to lambda. So E(x) = 0.2

5 0
3 years ago
Use Green's Theorem to evaluate the line integral along the given positively oriented curve.
FromTheMoon [43]

Answer:

∫ C ( y + e√x) dx  +  ( 2x + cosy² ) dy = 1/3

Step-by-step explanation: See Annex

Green Theorem establishes:

∫C ( Mdx  +  Ndy )  = ∫∫R ( δN/dx  -  δM/dy ) dA

Then

∫ C ( y + e√x) dx  +  ( 2x + cosy² ) dy

Here

M = 2x  + cosy²           δM/dy  =  1

N = y + e√x                 δN/dx  =  2

δN/dx  -  δM/dy  =  2  -  1   = 1

∫∫(R) dxdy   ∫∫ dxdy

Now integration limits  ( see Annex)

dy  is from   x  = y²    then     y = √x    to  y = x²   and for dx

dx   is from 0   to  1 then

∫ dy    = y | √x   ;   x²      ∫dy    =  x² - √x

And

∫₀¹ ( x² - √x ) dx    =  x³/3  - 2/3 √x |₀¹    =   1/3 - 0

∫ C ( y + e√x) dx  +  ( 2x + cosy² ) dy = 1/3

5 0
3 years ago
What to the third power is equal to 729
atroni [7]

If you had absolutely no idea, then you'd have roughly two choices
of how to find it:

#1).  Try numbers until you find the right one.

        Pick a number.
        Cube it.
        If you get less than 729, go back and try a bigger number.
        If you get more than 729, go back and try a smaller number.
        Eventually you find the right one.  

Try 1.        1³ = 1 .            Too small.
Try 2.        2³ = 8 .            Still too small.
Try 5.        5³ = 125 .        Still too small.
Try 20.     20³ = 8,000.      Ooops.  Too big.
Try 10.     10³ = 1,000       Too big.
Try 8.         8³ = 512.         Oooo.  Too small, but maybe getting close.
Try 8.5.    8.5³ = 614.125   Still too small, but very close.
Try 9.         9³ = 729 .       That's it !            yay !


#2).  x³ = 729

Take the log of each side:      log(x³) = log(729)

                                         3 log(x)  =  log(729)

Divide each side by  3 :         log (x)  =  (1/3) log(729)

Look up log(729) :                 log(x)  =  (1/3) (2.86272...)

                                                      =    0.95424...
Raise 10 to the power
of each side:                      10^log(x)  =  10⁰·⁹⁵⁴²⁴···  

                                               x        =  8.99994...

                                         (That's the way it is with logs.
                                          They never come out even.)
5 0
3 years ago
Read 2 more answers
Question 5 of 23
kari74 [83]

Answer:

Step-by-step explanation:

3 0
3 years ago
Quadrilateral has angles 45 degrees, 150 degrees, 65 degrees, and N degrees
Aleonysh [2.5K]
N=100
other angles=260
all interior angles of a quadrilateral add up to 360
3 0
3 years ago
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