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Anna007 [38]
3 years ago
8

Find the three arithmetic means between -5 and -25.

Mathematics
1 answer:
inn [45]3 years ago
7 0
The answer you are looking for is: -15.
I hope this helps.
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PLEASE ANSWER ASAPPPP I WILL MARK BRAINLY
anastassius [24]

Answer:

The answer is option A.

7( \frac{x}{8} ) +  \frac{3}{4}  =  - 6

Hope this helps you

4 0
2 years ago
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Show correct answers only!! i need asap!!
SOVA2 [1]

Answer:

11 1/2 aka D

Step-by-step explanation:

add 7 and 4 which is 11, then add 1/4 and 1/4 which is 1/2

4 0
3 years ago
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A small lawnmower company produced 1,500 lawnmowers in 2008. In an effort to determine how maintenance-free these units were, th
ikadub [295]

Answer:

The 95% confidence interval for the average number of years until the first major repair is (3.1, 3.5).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the average using the finite correction factor is:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\cdot\sqrt{\frac{N-n}{N-1}}

The information provided is:

N=1500\\n=183\\\sigma=1.47\\\bar x=3.3

The critical value of <em>z</em> for 95% confidence level is,

<em>z</em> = 1.96

Compute the 95% confidence interval for the average number of years until the first major repair as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\cdot\sqrt{\frac{N-n}{N-1}}

     =3.3\pm 1.96\times\frac{1.47}{\sqrt{183}}\times\sqrt{\frac{1500-183}{1500-1}}\\\\=3.3\pm 0.19964\\\\=(3.10036, 3.49964)\\\\\approx (3.1, 3.5)

Thus, the 95% confidence interval for the average number of years until the first major repair is (3.1, 3.5).

7 0
3 years ago
at cheng's bike rentals, it costs $21 to rent a bike for 6 hours. how many dollars does it cost per hour of bike use?
Vlada [557]
Rent for 6 hours = 21
rent for a hour = 21/6
                        = $3.5
4 0
2 years ago
State a number that would lie between -2.15 and -2.16 on the number line
Aleks04 [339]

Answer:

One answer would be -2.155.

3 0
2 years ago
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