3 years ago

Ifa+1/a=4-root15 find a^2 +1/a^2

Mathematics

2 answers:

Maru [420]3 years ago

7 0

62 if what I got for this

adelina 88 [10]3 years ago

3 0

62 is the correct answer of this question

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svetlana [45]

Answer is B. 3

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3 years ago

The probability that an egg on a production line is cracked is 0.01. Two eggs are selected at random from the production line. F

musickatia [10]

Answer:

$P(X \geq 1)=1-P(X$

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

Step-by-step explanation:

Let X the random variable of interest "number of craked eggs", on this case we now that:

$X \sim Binom(n=2, p=0.01)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(x \geq 1)=1-P(X$

And we can find the probability:

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

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3 years ago

Dialyn scored 2.5 points higher than Gina at a gymnastics event. Select the values that could represent each student's gymnastic

bija089 [108]

Answer are a, c and d

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3 years ago

Solve the equation P=KTV for the letter K.

ddd [48]

Answer:

K = $\frac{P}{TV}$

Step-by-step explanation:

P = KTV

Divide both sides by TV

(P/TV) = K

5 0

3 years ago

Ifa+1/a=4-root15 find a^2 +1/a^2​

Ifa+1/a=4-root15 find a^2 +1/a^2