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Kaylis [27]
3 years ago
10

Someone help me.......

Mathematics
1 answer:
Makovka662 [10]3 years ago
3 0
The tan of a is 12/5
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A store receives a shipment of 5,000 MP3 players. In a previous shipment of 5,000 MP3 players, 300 were defective. A store clerk
aalyn [17]

Answer:

A store receives a shipment of 5,000 MP3 players. In a previous shipment of 5,000 MP3 players, 300 were defective. A store clerk generates random numbers to simulate a random sample of this shipment. The clerk lets the numbers 1 through 300 represent defective MP3 players, and the numbers 301 through 5,000 represent working MP3 players. The results are given.

948 628 87 4,987 938 468 3,589 298 2,459 2,286

Based on this sample, how many of the MP3 players might the clerk predict would be defective?

The manager would expect

defective players in the shipment.

6 0
2 years ago
If a research team increases the sample size for a study, the power of their statistical tests will:
Viktor [21]

Answer: c) increase

Step-by-step explanation:

  • A sample is a finite subset of the entire population on which research statistical test regarding his/ her objective .

As the sample size increases it comes closer to the population size, and so converge to a better result of researcher's analysis.

It means the size of the sample is proportional to the power of their statistical tests.

∴ As the size of the sample increases the power of statistical test increases.

Hence, If a research team increases the sample size for a study, the power of their statistical tests will <u>increases</u>.

Therefore , the correct answer is : c) increase

3 0
2 years ago
Find the orthocenter of △ABC. A(2, 3), B(−4, −3), C(2, −3)
weqwewe [10]
ANSWER

\boxed { A. \: \: (2,-3) }

EXPLANATION.

The orthocenter is the point of intersection of any two altitudes of the triangle.

First, you need to determine the slope of each side of the triangle.

△ABC has vertices A(2, 3), B(−4, −3), C(2, −3).

slope \: of \: AB = \frac{3 - - 3}{2 - - 4} = \frac{6}{6} = 1

slope \: of \: AC = \frac{ 3 - - 3}{2 - 2} = \frac{6}{0}

This line has undefined slope, which means it is a vertical line.

slope \: of \: BC = \frac{ - 3 - - 3}{ 2 - - 4} = \frac{0}{6} = 0

The slope of this line is zero, meaning the line is a horizontal line.

This implies that side BC and side AC of the given triangle are perpendicular and will intersect at C since they are the altitudes of triangle ABC.

Hence the orthocentre is

(2,-3)

See diagram in attachment.

5 0
2 years ago
Based on this picture, if ∠3 = 50˚then what is m∠8? <br> SHOW WORK PLEASE
zheka24 [161]
The answer is that measure of angle eight is 130°
6 0
2 years ago
A figure has a vertex at (5, 2). If the figure has line symmetry about the y-axis, what are the coordinates of another vertex of
snow_tiger [21]
The answer will be (-5, 2)
8 0
3 years ago
Read 2 more answers
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