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Elenna [48]
3 years ago
6

What is 5x-9+2-4=9.4

Mathematics
1 answer:
Dominik [7]3 years ago
4 0

Answer:

x=5.1

Step-by-step explanation:

5x-9+2-4=9.4

5x=9.4+4-2+9

5x=20.4

x=5.1

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Two friends argue over who brushes their teeth more often. Who is more likely to brush both morning and evening? Assume all even
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5 0
3 years ago
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)

Step-by-step explanation:

The formula for Confidence Interval =

Mean ± z × Standard deviation /√n

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Z score for 99% confidence interval = 2.56

Confidence Interval =

142.3 ± 2.56 × 20.8/√12

142.3 ± 2.56 × 6.0044427996

142.3 ± 15.371373567

Confidence Interval

= 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)

3 0
3 years ago
Simplify 3^2 x 2^4 x 3^3 x 2
alex41 [277]
3²×2^4 ×3³×2=
3^5×2^5=
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3 0
3 years ago
Eight less than four times the quantity of five more than twice a number is 36 what is the number
OleMash [197]
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8x = 24
x = 3
5 0
3 years ago
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