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chubhunter [2.5K]
2 years ago
13

Can anyone help please?

Mathematics
2 answers:
Korolek [52]2 years ago
8 0

Answer:

6

Step-by-step explanation:

6(2) = 12

12 + 9 = 21

21/3 = 7

7 - 1 = 6 <--- Number that's she's thinking

I tested every number!

Iteru [2.4K]2 years ago
5 0
ITS 6 the person above me is correct!! I just checked
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Consider a Poisson probability distribution in a process with an average of 3 flaws every 100 feet. Find the probability of 4 fl
Scrat [10]

Answer:

16.80% probability of 4 flaws in 100 feet.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

An average of 3 flaws every 100 feet.

So \mu = 3

Find the probability of 4 flaws in 100 feet.

This is P(X = 4)

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 4) = \frac{e^{-3}*(3)^{4}}{(4)!} = 0.1680

16.80% probability of 4 flaws in 100 feet.

3 0
3 years ago
A car travels at a speed of 41 meters/second using 756 joules of energy every second. Suppose we know that the car uses 52,700 j
Nezavi [6.7K]

Answer: 2858.11 meters  

Step-by-step explanation:

to answer this question we have to analyze the information given:

Total energy =52,700 joules

Energy per second = 756 joules

Time = joules / (joules / sec) =52,700/756 =69.71 sec

Now, to find the distance:

Distance = speed rate x time

d = 41 meters/second x 69.71 sec = 2858.11 meters  

Feel free to ask for more if needed or if you did not understand something.  

8 0
2 years ago
Read 2 more answers
Show work, please! its due today
Vera_Pavlovna [14]

Answer:

grandpa is 65 and junior is 13

Step-by-step explanation:

if you divide 78 by 6, you get 13 (juniors age) and 78 minus 13 is 65

hope this helps:)

6 0
2 years ago
Determine the 28th term of the sequence -242, -251, -260
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I got -512 because the pattern is adding -9.

I hope this helps! :D
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3 years ago
Which equation is represented by the table?
Katarina [22]

the answer is b=3a+2 so B

3 0
3 years ago
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