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Anna007 [38]
1 year ago
12

I need help with this asap!

Mathematics
1 answer:
scoundrel [369]1 year ago
4 0
The answer is in the picture! I hope this helps!

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Suppose that the probability that any particle emitted by a radioactive material will penetrate a certain shield is 0.01. If 10
AnnyKZ [126]

Answer:

a)P=0.42

b) n\geq 297

Step-by-step explanation:

We have a binomial distribution, since the result of each experiment admits only two categories (success and failure) and the value of both possibilities is constant in all experiments. The probability of getting k successes in n trials is given by:

P=\begin{pmatrix}n\\ k\end{pmatrix} p^k(1-p)^{n-k}=\frac{n!}{k!(n!-k!)}p^k(1-p)^{n-k}

a) we have k=2, n=10 and p=0.01:

P=\frac{10!}{2!(10!-2!)}0.01^2(1-0.01)^{10-2}\\P=\frac{10!}{2!*8!}0.01^2(0.99)^{8}\\P=45*0.01^2(0.99)^8=0.42

b) We have, 1-(1-p)^n=P, Here P is the probability that at least one particle will penetrate the shield, this probabity has to be equal or greater than 0.95. Therefore, this will be equal to subtract from the total probability, the probability that the particles do not penetrate raised to the total number of particles.

1-0.99^n\geq 0.95\\0.99^n\leq 1-0.95\\0.99^n\leq 0.05\\n\geq 297

4 0
3 years ago
Shawn is buying a new Jet Ski
marishachu [46]

Answer:

Step-by-step explanation:

3 0
3 years ago
Find the value of xx and yy in the parallelogram below.
VikaD [51]

Answer: x = 7 and y = -17

Step-by-step explanation:

Opposite sides of parallelograms are equal.

-5y + 3 = 88

-5y = 85

y = -17

10x - 7 = 63

10x = 70

x = 7

6 0
2 years ago
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Jayden recently learned that the atmosphere is made of gases. Which is NOT a way in whichgases are helpful to life on Earth?A.It
snow_lady [41]

Answer:

A. It provides carbon monoxide to help plants grow.

Step-by-step explanation:

The only incorrect option is that carbon monoxide is required by plant, but the correct statement would be carbon dioxide is required my plants, for its growth, which helps to perform the process of photosynthesis.

The rest of the statements are correct.

As, the atmosphere acts as a blanket, which protects the earth from the harmful rays of the sun.

And, atmosphere constitute of various gases, which enables the living organisms to breath.

And, the atmosphere protects from any meteors entering from space.  

3 0
3 years ago
Need help with this question asap
bija089 [108]

Answer:D

Step-by-step explanation:

5 0
3 years ago
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