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Slav-nsk [51]
3 years ago
8

 In a survey of 2,900 people who owned a certain type of​ car, 1,015 said they would buy that type of car again. What percent of

the people surveyed were satisfied with the​ car?
Mathematics
1 answer:
Bess [88]3 years ago
5 0

Answer:

35%

Step-by-step explanation:

In general to find %, divide the subset by the total amount and multiply by 100:

1015 / 2900 * 100 = 35%

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The coordinate grid shows points A through K. What point is a solution to the system of inequalities? y < −2x + 10 y < 1 o
VashaNatasha [74]

The graph that represents the system of inequalities will be y ≤ −2x + 3; y ≤ x + 3

<h3>How to depict the graph?</h3>

The equation of the line will be:

y = mx + b

In this case, we can observe that both lines have the same y intercept and that the lines are solid.

Hence, graph that represents the system of inequalities will be y ≤ −2x + 3; y ≤ x + 3. The graph is attached.

When the coordinate grid shows points A through, the point that is a solution to the system of inequalities is negative 6 point G at negative 3, negative 10 point H at negative 4.

Finally, the graph that represents the following system of inequalities: y ≤ −3x + 1 y ≤ 1 over 2x + 3 is the graph of two intersecting lines where both lines are solid.

One line of x passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line g of x passes through points 0, 1 and 1, negative 2 and is shaded above the line.

Learn more about graphs on:

brainly.com/question/19040584

#SPJ1

7 0
2 years ago
Please help. I’ll mark you as brainliest if correct!
Ivan

Answer:

A.

Step-by-step explanation:

5 0
3 years ago
A researcher examines 27 water samples for mercury concentration. The mean mercury concentration for the sample data is 0.097 cc
jonny [76]

Answer:

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation = 0.0074

n = number of samples = 27

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the z score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 27 - 1 = 26

Since confidence level = 90% = 0.90, α = 1 - CL = 1 – 0.9 = 0.1

α/2 = 0.1/2 = 0.05

the area to the right of z0.05 is 0.05 and the area to the left of z0.05 is 1 - 0.05 = 0.95

Looking at the t distribution table,

z = 1.706

The critical value is 1.706

Margin of error = 1.706 × 0.0074√27

= 0.0024

The 90% confidence interval is

0.097 ± 0.0024

4 0
3 years ago
What is the equation of a line with slope of 3 and going through the point (2, 4)
dsp73
The correct answer is a.y=3x-4
8 0
3 years ago
A square image of an object on a video game has an initial side length of 25 pixels. To make the object appear closer, the side
Pani-rosa [81]

Answer: A(t) = 100t^2 + 500t + 625

3,025 square pixels

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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