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Sholpan [36]
3 years ago
11

A train is traveling at a consistent speed.

Mathematics
1 answer:
givi [52]3 years ago
5 0
Your missing answer is 24. To figure this out, divide distance over time and you will always get 2 in this case. To reverse it, multiply the time by 2.
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Assume that the probability of a defective computer component is 0.02. Components arerandomly selected. Find the probability tha
solmaris [256]

Answer:

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

Step-by-step explanation:

Assume that the probability of a defective computer component is 0.02. Components are randomly selected. Find the probability that the first defect is caused by the seventh component tested.

First six not defective, each with 0.98 probability.

7th defective, with 0.02 probability. So

p = (0.98)^6*0.02 = 0.0177

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

Find the expected number and variance of the number of components tested before a defective component is found.

Inverse binomial distribution, with p = 0.02

Expected number before 1 defective(n = 1). So

E = \frac{n}{p} = \frac{1}{0.02} = 50

Variance is:

V = \frac{np}{(1-p)^2} = \frac{0.02}{(1-0.02)^2} = 0.0208

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

5 0
3 years ago
The apothem is perpendicular to a side and forms two
Rus_ich [418]

Answer:

4

Step-by-step explanation:

6 0
2 years ago
Classify 89, 16, 17, and 25 as a prime or composite
kipiarov [429]
89 is prime 16 is composite 17 is prime 25 is composite
5 0
3 years ago
Read 2 more answers
Hallie bought 20 lollipops for $0.25 each and 15 peppermint patties for $0.35. How much money did Hallie spend on candy?
Nastasia [14]

Answer:

She spent $10.25 on candy.

Step-by-step explanation:

Step 1- Multiply

20×0.25= 5

15×0.35= 5.25

Step 2- Add

5+5.25= 10.25

7 0
3 years ago
Read 2 more answers
A tank is 4 feet long, 6 feet wide and 10 feet<br> tall. How much water can that tank hold?
prohojiy [21]

Answer:

Volume = 240 feet³

Step-by-step explanation:

We'll find it's volume

Volume = Lenth *Width*Height

<u><em>Where Length = 4, Width = 6, Height = 10</em></u>

Volume = 4 * 6 * 10

Volume = 240 feet³

4 0
3 years ago
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