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Ainat [17]
3 years ago
14

11. Find the sum of all prime numbers between 50and 60.A. 109B. 110 -0. 112 D. 122​

Mathematics
1 answer:
denpristay [2]3 years ago
5 0

Answer:

C.112

Step-by-step explanation:

First,\\Lets\ list\ out\ all\ the\ primes\ between\ 50\ and\ 60:\\53,59\\Hence,\\By\ adding\ them\ we\ get:\\53+59\\=112

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3 years ago
Thirty percent (30%) of the bulbs in a large box are defective. If 12 bulbs are selected randomly from the box, calculate the pr
AleksandrR [38]

The probability that exactly 6 are defective is 0.0792.

Given:

30% of the bulbs in a large box are defective.

If 12 bulbs are selected randomly from the box.

To find:

The probability that exactly 6 are defective.​

Solution:

Probability of defective bulbs is:

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p=\dfrac{30}{100}

p=0.3

Probability of non-defective bulbs is:

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The probability that exactly 6 are defective is:

P(x=r)=^nC_rp^rq^{n-r}

P(x=6)=^{12}C_6(0.3)^6(0.7)^{12-6}

P(x=6)=924(0.3)^6(0.7)^{6}

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P(x=6)\approx 0.0792

Therefore, the probability that exactly 6 are defective is 0.0792.

Learn more:

brainly.com/question/12917164

8 0
3 years ago
Ted needs an average of at least 70 on his three history tests. He has already scored 85 and 60 on two tests. What is the minimu
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He must get a 65 as a minimum grade on his third test to get an average of 70.
Equation is
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Nick walked 3/4 of a mile in 12 minutes.How long would it take him to walk three miles at this pace
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25.7 divided by pie is 8.18 which is the diameter. divide that by 2 and u get the radius.

7 0
3 years ago
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