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3 years ago

6) Explain why -4 -2 = -6.

Mathematics

1 answer:

emmasim [6.3K]3 years ago

8 0

Answer:

since both numbers have the same sign the rule of "same sign keep the sign" applies and since they are both negative instead of subtracting you add if they were the inverse of each other you would have to subtract but clearly that isn't needed in this situation.

hope that helps a little!!

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How in the world do I set this up?

Iteru [2.4K]

Answer:

Step-by-step explanation:

The 2 2/5 is not showing up correctly, but I think it means that you are going 2 miles + 2/5 of a mile. If that is not true, leave me a note and I'll correct it.

So 75 and 30(n - 5) represent cents (I think) per 1/5 of a mile.

1 mile has 5 fifths.

2 miles has 10 fifths

2/5 has 2 fifths.

the total is 17 fifths so n = 17

C = 75 + 30(17 - 5)

C = 75 + 30(12)

C = 75 + 360

C = 435

That means you pay 4 dollars and 35 cents.

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3 years ago

The movie theater has 250 seats 225 seats were sold for the carriage showing what percent of seats are empty?

uysha [10]

I believe the answer is about 10 percent.

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3 years ago

29/1000

Vladimir [108]

B. 0.029
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7 0

3 years ago

A process is normally distributed with a mean of 104 rotations per minute and a standard deviation of 8.2 rotations per minute.

Ilia_Sergeevich [38]

Answer:

Option B) In control as this one data point is not more than three standard deviations from the mean

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 104 rotations per minute

Standard Deviation, σ = 8.2 rotations per

We are given that the distribution of process is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

For x = 118

$z = \displaystyle\frac{118-104}{8.2} = 1.7073$

Thus, we could say that this data point lies within three standard deviations from the mean as:

$\mu - 3\sigma < x < \mu + 3\sigma\\104-3(8.2) < x < 104 + 3(8.2)\\79.4 < 118 < 128.6$

Thus, it could be said

Option B) In control as this one data point is not more than three standard deviations from the mean

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4 years ago

My car loan was for $12,000 with 5.1% interest over 5 years. What is the total price with interest that I will pay for my car?

Naddik [55]

612 is the answer to the question you have asked brainly.com on 11/28/2016 2 minutes ago at 2:18 P.m.

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3 years ago