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anastassius [24]
3 years ago
9

A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 87 m long and 69 m wide.

What is the length of a training track running around the field? (Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.)

Mathematics
1 answer:
professor190 [17]3 years ago
7 0

Answer:

607.32

Step-by-step explanation:

two semi circles make a whole circle so use the normal circumfrence formula 2 pi r

circumfrence = 433.32

the perimeter of the rectangle is 87 + 87, because they are on the outside of the field.

The answer is 607.32

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Four pieces of rope of unknown (but equal) length and 10 more feet of rope are attached together. The resulting rope is 30 feet
zlopas [31]

Answer:

5 feet each

Step-by-step explanation:

So we know that 4 pieces of rope out of 5 are equal. So, we simply subtract 10 from 30 for that 10-foot piece of rope, which leaves us with 20. Divide 20 by 4 (since there is 4 pieces of rope of equal value) and it leaves us with 5 feet.

Hope I helped! :)

7 0
2 years ago
A doctor wants to know if her patients are happy with her. She decides to survey a sample of her clients. What method would be b
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8 0
3 years ago
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Can you do this because it is confusing to me
erica [24]

A cylinder is a three-dimensional structure formed by two parallel circular bases connected by a curving surface. The volume of the cylinder is 1330.4644 cm³.

<h3>What is a cylinder?</h3>

A cylinder is a three-dimensional structure formed by two parallel circular bases connected by a curving surface. The circular bases' centers overlap each other to form a right cylinder.

Given the height of the cylinder is 14 cm, while the diameter of the cylinder is 11 cm. Therefore, the volume of the cylinder can be written as,

The volume of the cylinder = (π/4)×(D²) × H

                                               = (π/4)×(11)² × 14

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Hence, the volume of the cylinder is 1330.5cm³.

Learn more about Cylinder:

brainly.com/question/12248187

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3 0
2 years ago
An educator wants to determine whether a new curriculum significantly improves standardized test scores for third grade students
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Answer:

Independent

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Dependent Sampling:

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So the sampling is independent.

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Quantitative Sampling is one in which the results change with the number of the individuals / tests etc. But in this experiment the number of the students is fixed so it is showing quality rather than quantity.

8 0
4 years ago
Use mapping notation to describe a translation up 8 units.
7nadin3 [17]
B, y goes up 8, when you add 8 to y
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3 years ago
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