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murzikaleks [220]
3 years ago
6

Prove that F:R-R ,f(x)=x^2+2/x^2+2 is a bijective mapping​

Mathematics
1 answer:
OLga [1]3 years ago
3 0
3+is a biggest and light
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Diego's mother is twice as old as he is she is also as old as the sum of the ages of diego and both of his younger twin brothers
OLEGan [10]
2d = d + 11 + 11 = d + 22
d = 22
Diego is 22 years old.
7 0
3 years ago
A TV company when purchasing thousands electronic components apply this sampling plan: randomly select 15 of them and then accep
katrin [286]
<h2>Answer with explanation:</h2>

According to the Binomial probability distribution ,

Let x be the binomial variable .

Then the probability of getting success in x trials , is given by :

P(X=x)=^nC_xp^x(1-p)^{n-x} , where n is the total number of trials or the sample size and p is the probability of getting success in each trial.

As per given , we have

n = 15

Let x be the number of defective components.

Probability of getting defective components = P = 0.03

The whole batch can be accepted if there are at most two defective components. .

The probability that the whole lot is accepted :

P(X\leq 2)=P(x=0)+P(x=1)+P(x=2)\\\\=^{15}C_0(0.03)^0(0.97)^{15}+^{15}C_1(0.03)^1(0.97)^{14}+^{15}C_2(0.03)^2(0.97)^{13}\\\\=(0.97)^{15}+(15)(0.03)^1(0.97)^{14}+\dfrac{15!}{2!13!}(0.03)^2(0.97)^{13}\\\\\approx0.63325+0.29378+0.06360=0.99063

∴The probability that the whole lot is accepted = 0.99063

For sample size n= 2500

Expected value : \mu=np= (2500)(0.03)=75

The expected value = 75

Standard deviation :  \sigma=\sqrt{np(1-p)}=\sqrt{2500(0.03)(0.97)}\approx8.53

The standard deviation = 8.53

6 0
3 years ago
Please help I’ll give brainliest
AlekseyPX
It’s the 2nd on I’m pretty sure because it says decimal
8 0
3 years ago
Read 2 more answers
How do I solve this?
Tanya [424]
Y=-3x+5 hope this helps
3 0
3 years ago
Sow your work plz and thank you! Best answer gets brainliest!
ELEN [110]
  • First of all, a 2 foot kangaroo is casting a 7 foot shadow.
  • Next we do 7 divided by 2 which equals 3.5.
  • Since we know the shadow is going to be 3.5x the object size we have to divide its shadow by 3.5
  • 14 divided by 3.5 is  4 so the Eucalyptus tree is 4ft long

<u><em>    Your answer=4ft </em></u>

<u><em></em></u>

Hope this helps!

8 0
3 years ago
Read 2 more answers
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