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2 years ago

Use a number line to add 3 + (–5).

Mathematics

2 answers:

Sonja [21]2 years ago

8 0

Answer:

3 plus -5 means you go backwards from +3 to -2 thats your answer

Step-by-step explanation:

Leni [432]2 years ago

5 0

Answer:

-2

Step-by-step explanation:

3-5=-2

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Trinity created a game that uses a card number 1 to 8 and a six sided cube numbered 1 to 6. Each player chooses one card and roa

Ksju [112]

Answer:

Correct option: A -> 1/24

Step-by-step explanation:

To find the probability of having a card with the value greater than six, the options are: 7 and 8. So there are two options in the total of 8, so the probability is P1 = 2 / 8 = 1/4

The cube has 6 numbers, from 1 to 6, so the probability of rolling a six is P2 = 1/6

To find the final probability, we multiply both probabilities, so:

P = P1 * P2 = (1/4) * (1/6) = 1/24

Correct option: A

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3 years ago

Who Would Like To Help Me??

ser-zykov [4K]

Answer:

The answer is 128 bunches because 1027/8 = 128.375

Then I multiplied 128*8

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So the left over is 3 after subtracting the initial.

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3 years ago

|m|-2>0 I'm trying to find the inequality for m

loris [4]

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2 years ago

What is 7+78/3=?<br> A.43<br> B.25<br> C.25.5<br> D.75

Andrei [34K]

So correct answer is 33

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3 years ago

Service calls arriving at an electric company follow a Poisson distribution with an average arrival rate of 5656 per hour. Find

liberstina [14]

Answer:

The average number of service calls in a 15-minute period is of 14, with a standard deviation of 3.74.

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. The variance is the same as the mean.

Average rate of 56 calls per hour:

This means that $\mu = 56n$ , in which n is the number of hours.

Find the average and standard deviation of the number of service calls in a 15-minute period.

15 minute is one fourth of a hour, which means that $n = \frac{1}{4}$ . So

$\mu = 56n = \frac{56}{4} = 14$

The variance is also 14, which means that the standard deviation is $\sqrt{14} = 3.74$

The average number of service calls in a 15-minute period is of 14, with a standard deviation of 3.74.

4 0

2 years ago