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Goshia [24]
2 years ago
10

I need help tyyyyyyyy

Mathematics
2 answers:
Montano1993 [528]2 years ago
3 0

Answer:

-17

Step-by-step explanation:

-4x-17+x=-3x+----  

-3x-17=-3x+---

-3x-17=-3x+(-17)

vovikov84 [41]2 years ago
3 0

Answer:

x =   - 17

Step-by-step explanation:

we will solve with the equation:

- 4x - 17 + x =  - 3x + x

-4x  + x + 3x - x = 17

- x = 17

\frac{ -x}{ - 1}  =  \frac{17}{ - 1}

x =  - 17

Please mark me brainliest if this helps.

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An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She rand
antoniya [11.8K]

Answer:

No, It is a Cluster Sampling.

Step-by-step explanation:

Simple Random Sampling is the sampling when samples are chosen randomly, where each unit has an equal chance of being selected in a sample.

If the population is divided into a different group called cluster and clusters are selected as a sample then it is Cluster Sampling.

Here, since Expert is interviewing all of the teachers at the selected schools, so it is Cluster Sampling, not a Simple Random Sampling.

3 0
3 years ago
Read 2 more answers
At the movies: A movie theater is considering a showing of The Princess Bride for a 80's thowback night. In order to ensure the
lana66690 [7]

Answer:

The 95% confidence interval to determine the true proportion of all patrons who would be interested in attending the showing is (0.2121, 0.4671).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

Of the 53 patrons, 18 said that they would come to see the film.

This means that n = 53, \pi = \frac{18}{53} = 0.3396

95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3396 - 1.96\sqrt{\frac{0.3396*0.6604}{53}} = 0.2121

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3396 + 1.96\sqrt{\frac{0.3396*0.6604}{53}} = 0.4671

The 95% confidence interval to determine the true proportion of all patrons who would be interested in attending the showing is (0.2121, 0.4671).

8 0
2 years ago
Which inequality is true? A. |-15| > |-19| B. |-16| < |13| C. |-15| > |12| D. |12| < |-8| E. |-19| > |-20|
Olin [163]
C. is the answer.
The modulus or absolute value function of a real number x is the non-negative value of x without regard to its sign.
The only correct option is C. because 15 is indeed greater than 12.
Options A., B., D. and E. are wrong.
5 0
2 years ago
Read 2 more answers
−3x+4y=14
ZanzabumX [31]
Neither only 7×2=14 4,6 is not = to 14 neither

2,5
5 0
3 years ago
Lily's car used 6 gallons of gas to drive 237 miles. At what rate does her car use gas in miles per gallon? Express your answer
iogann1982 [59]

Answer:

<u>39.5 miles/gallon.</u>

Step-by-step explanation:

6 gallons of gas used to drive 237 miles

The rate of her car uses gas in miles per gallon =

\frac{237 miles}{6 gallons} = \frac{237}{6} = 39.5 \ miles/gallons

Which mean the car will consume 1 gallon for each 39.5 miles.

7 0
3 years ago
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