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Ratling [72]
3 years ago
6

Explain why head circles and arm circles are considered dangerous exercises.

Advanced Placement (AP)
1 answer:
Alex787 [66]3 years ago
7 0

Answer:

Both head circles and arm circles involve stretching with motion. These stretching exercises risk serious injury to the muscles of the neck and shoulders if the motions are not trictly controlled. When the head goes back, it hyperextends the neck, which is dangerous; despite not involving bouncing, arm circles are a ballistic exercise and should not be performed.

Explanation:

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Answer:

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Explanation:

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2 years ago
What is the square root of 1.45?<br><br> Brainliest will be given for the correct answer.
charle [14.2K]

Answer:

√1.45 = 1.2041594578792

Explanation:

Step 1:

Divide the number (1.45) by 2 to get the first guess for the square root .

Step 2:

Divide 1.45 by the previous result. d = 1.45/0.725 = 2.

Average this value (d) with that of step 1: (2 + 0.725)/2 = 1.3625

previous value = 0.725 - 1.3625 = 0.6375.

0.6375 > 0.001

Now we repeat the step

Step 3:

Divide 1.45 by the previous result. d = 1.45/1.3625 = 1.0642201835.

Average this value (d) with that of step 2: (1.0642201835 + 1.3625)/2 = 1.2133600918

Error = new guess - previous value = 1.3625 - 1.2133600918 = 0.1491399082.

0.1491399082 > 0.001.

Step 4:

Divide 1.45 by the previous result. d = 1.45/1.2133600918 = 1.1950285903.

Average this value (d) with that of step 3: (1.1950285903 + 1.2133600918)/2 = 1.2041943411 (new guess).

Error = new guess - previous value = 1.2133600918 - 1.2041943411 = 0.0091657507.

0.0091657507 > 0.001.

Step 5:

Divide 1.45 by the previous result. d = 1.45/1.2041943411 = 1.2041245757.

Average this value (d) with that of step 4: (1.2041245757 + 1.2041943411)/2 = 1.2041594584

- previous value = 1.2041943411 - 1.2041594584 = 0.0000348827.

0.0000348827 <= 0.001. accuracy, we stop the iterations and use 1.2041594584 as the square root.

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Answer:

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Explanation:

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