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3 years ago

What is 30 digits of pi?

Mathematics

2 answers:

Sophie [7]3 years ago

5 0

Answer:

3.141592653589793238462643383279

Step-by-step explanation:

Please mark me as brainless hope It helps

posledela3 years ago

4 0

Answer:

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679

Step-by-step explanation:

Go ogle

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Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are nequals7 trials, eac

Ket [755]

Answer:

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

Step-by-step explanation:

Question assumed: Find the probability that the number x of correct answers is fewer than 4.

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=7, p=0.25)$

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:

$P(X < 4)=P(X=0)+P(X=1)+P(X=2)+P(X=3)$

$P(X=0)=(7C0)(0.25)^0 (1-0.25)^{7-0}=0.1335$

$P(X=1)=(7C1)(0.25)^1 (1-0.25)^{7-1}=0.3115$

$P(X=2)=(7C2)(0.25)^2 (1-0.25)^{7-2}=0.3115$

$P(X=3)=(7C3)(0.25)^3 (1-0.25)^{7-3}=0.1730$

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

3 0

4 years ago

Simplify x^6+10x^5+25x^4-x^2-10x-25 using synthetic division

Mashutka [201]

Only the dividend is stated. there's no divisor

5 0

3 years ago

Read 2 more answers

GEOMETRY PROOFS!

Elis [28]

Given that:

In ∆AMN and ∆TPE

MA = PE (Side )

∠AMN = ∠TPE (angle)

MN = PT (Side)

By SAS Property

∆ MAN =~ ∆ PET

∆ MAN =~ ∆ PET are congruent triangles .

Answer:- ∆ MAN =~ ∆ PET

Additional comment:

SAS Property:-

In two triangles , The two sides and the included angle are equal to the corresponding two sides and the included angle of the second triangle then they are congruent and this property is called Side-Angle-Side (SAS) Property.

also read similar questions: I don't understand proof on geometry. How do you prove something that is given?

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Geometry Proof: Given: ∠1 ≅ ∠2 ∠3 ≅ ∠4 Prove: M is the midpoint of JK

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3 0

3 years ago

I have 40 yellow balls and 35 white balls. What is the probability that the next ball randomly pick is yellow

nalin [4]

40 yellow balls
35 white balls
40+35=75 total balls

40 out of 75 total balls are yellow. 40/75 are yellow

P(yellow)=40/75=8/15 or 53.33%

7 0

4 years ago

Read 2 more answers