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2 years ago

The frequency distribution is incorrectly constructed state the reason why

Mathematics

1 answer:

Vikki [24]2 years ago

8 0

Answer:

A class has been omitted.

Explanation:

Given the frequency distribution shown in the attached table.

the frequency distribution is incorrectly constructed because a class has been omitted.

On the given table the class 133-137 is missing on the frequency distribution table.

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shown. A 12 foot ladder is leaning against a house to form angle x. The distance between the house and the bottom of the ladder

Natalija [7]

Answer:

Part A

71°

Part B

The ladder is been used safely

Step-by-step explanation:

Part A

We solve the above question using Trigonometric function of Cosine

cos x = Adjacent/Hypotenuse

Adjacent = The distance between the house and the bottom of the ladder = 4 feet

Hypotenuse = Length of the ladder = 12 feet

x = Angle

Hence:

cos x = 4/12

cos x = 1/3

x = arc cos (1/3)

x = 70.528779366°

Approximately to the nearest degree

= 71°

Part B

According to the manufacturer, if the angle the ladder forms with the ground, x, is between 70° and 75°, then it meets safety standards. Is this ladder being used safely?

Angle x = 71°

Therefore, the ladder is been used safely

4 0

3 years ago

Instructions: Find UF if FR= 8. Help please

Yuki888 [10]

Answer:

Please mark as brainliest if answer is right

Have a great day, be safe and healthy

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4 0

3 years ago

Vincent gathered groups of 1 to 8 people and gave every group the same puzzle to solve. He recorded the number of minutes it too

Agata [3.3K]

Answer:

Larger groups tends to take less time to solve the puzzle.

Step-by-step explanation:

It is given that Vincent gathered few groups from 1 to 8 people and he gave them the same puzzle to solve for each group. The graph is provided which show the relationship between the number of groups and the time taken by each group to solve the puzzle.

From the graph, it cam be seen that, the larger groups is more likely to take less amount of time to solve the puzzle as compared to the smaller groups.