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lbvjy [14]
3 years ago
13

Given m|n, find the value of x.

Mathematics
2 answers:
astra-53 [7]3 years ago
7 0
The answer would be 117 degrees. Subtract 63 from 180 and it will give you 117
Rudik [331]3 years ago
6 0
that’s 117°
you get this by subtracting 180 by 63 to find the remaining value of the line
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2. P337. 23. A large box contains 10,000 ball bearings. A random sample of 120 is chosen. The sample mean diameter is 10 mm, and
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Answer:

B is True

A, C. D are false

Step-by-step explanation:

Given :

Sample size, n = 120

Mean diameter, m = 10

Standard deviation, s = 0.24

Confidence level, Zcritical ; Z0.05/2 = Z0.025 = 1.96

The confidence interval represents how the true mean value compares to a set of values around the mean computed from a set of sample drawn from the population.

The population here is N = 10000

To obtain

Confidence interval (C. I) :

Mean ± margin of error

Margin of Error = Zcritical * s/sqrt(n)

Margin of Error = 1.96 * 0.24/sqrt(120)

Confidence interval for the 10,000 ball bearing :

10 ± 1.96 * (0.24) / sqrt(120)

Hence. The confidence interval defined as :

10 ± 1.96 * (0.24) / sqrt(120) is the 95% confidence interval for the mean diameter of the 10,000 bearings in the box.

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7. A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the
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Answer: 475.59 meters .

Step-by-step explanation:

The correct equation is the following:

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a=-0.02\\\\b=9.5\\\\c=5.6

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x=\frac{-9.5\±\sqrt{(9.5)^2-4(-0.02)(5.6)}}{2(-0.02)}\\\\x_1=475.588\\x_2=-0.588

Choose the positive one and round it to the nearest hundreth:

x_1\approx 475.59

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