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Anna007 [38]
3 years ago
10

Plz help me well mark brainliest if correct!!.. .

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0

Answer:

70 ft

Step-by-step explanation:

20 + 20 + 15 + 15 = 70

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Round 46.231 to the nearest tenth
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Answer:

46.2

Step-by-step explanation:

Because starting from the decimal point, 2 is the tenth, 3 is the hundreth and so on and so forth.

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3/4 + 8/9

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alina1380 [7]

Answer:

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Step-by-step explanation:

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A random sample of 12 men age 60-65 has a mean blood pressure of 142. 3 mmHg and a standard deviation of 20.8 mmHg. Construct a
Over [174]

Answer:

The 99% confidence interval = (126.93,157.67)

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Mean ± z × Standard deviation /√n

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142.3 ± 15.371373567

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= 142.3 - 15.371373567

= 126.92862643

≈ 126.93

142.3 + 15.371373567

= 157.67137357

≈ 157.67

Therefore, the 99% confidence interval = (126.93,157.67)

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What fraction of his allowance did he spend on monday 1/6 3/6?
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