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Nadya [2.5K]
3 years ago
7

What is the order of rotational symmetry for a mombus? 0 1

Mathematics
1 answer:
Elan Coil [88]3 years ago
7 0

Answer: order 2

Step-by-step explanation:

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Car a and b are travelling at 30 and 40 mph. if car b starts out 5 miles behind car 6, how many hours will it take for car b to
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As both are moving in the same direction ,both<span> will travel the </span>same distance<span> till catch up time --</span><span>d</span>
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7)Twice a number when decreased by 7 gives 45. Find the number.​
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2 years ago
the atlanta braves are offering bobblehead to every 10th person who enters your fundraiser. the nashville predators are offering
Paha777 [63]

In this situation, attendee number thirty will be the first one o receive both the bobblehead and the ticket.

<h3>Which attendees will receive the bobblehead and the ticket?</h3>

Bobblehead:

  • Attendee number 10
  • Attendee number 20
  • Attendee number 30

Ticket:

  • Attendee number 15
  • Attendee number 30

<h3>What can be concluded?</h3>

It can be concluded the attendee number 30 will be the first one to receive both the ticket and the bobblehead.

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6 0
1 year ago
Each item produced by a certain manufacturer is independently of acceptable quality with probability 0.95. Approximate the proba
Diano4ka-milaya [45]

Answer:

The probability that at most 10 of the next 150 items produced are unacceptable is 0.8315.

Step-by-step explanation:

Let <em>X</em> = number of items with unacceptable quality.

The probability of an item being unacceptable is, P (X) = <em>p</em> = 0.05.

The sample of items selected is of size, <em>n</em> = 150.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 150 and <em>p</em> = 0.05.

According to the Central limit theorem, if a sample of large size (<em>n</em> > 30) is selected from an unknown population then the sampling distribution of sample mean can be approximated by the Normal distribution.

The mean of this sampling distribution is: \mu_{\hat p}= p=0.05

The standard deviation of this sampling distribution is: \sigma_{\hat p}=\sqrt{\frac{ p(1-p)}{n}}=\sqrt{\frac{0.05(1-.0.05)}{150} }=0.0178

If 10 of the 150 items produced are unacceptable then the probability of this event is:

\hat p=\frac{10}{150}=0.067

Compute the value of P(\hat p\leq 0.067) as follows:

P(\hat p\leq 0.067)=P(\frac{\hat p-\mu_{p}}{\sigma_{p}} \leq\frac{0.067-0.05}{0.0178})=P(Z\leq 0.96)=0.8315

*Use a <em>z</em>-table for the probability.

Thus, the probability that at most 10 of the next 150 items produced are unacceptable is 0.8315.

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3 years ago
What fraction of 3/4 it will take to make 2/3
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x = 8/9
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