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torisob [31]
3 years ago
10

Pls help, I need this :)

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
7 0

Answer:

1st statement is true

Step-by-step explanation:

The 1st statement is true since .25 is 25/100

The 2nd statement is false since 20 / 10 = 2 not .20 which is 2/10

The 3rd statement is false since 2/3 = .6666667 not .23

The 4th statement is false since .4 = 4/10 not 1/4 which is .25

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C) The amount of money in his lunch account

Step-by-step explanation:

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Determine the differential equation giving the slope of the tangent line at point (x,y) for the given family of curves.
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&lt;1 and &lt;2 form a linear pair. The measure of &lt;1 = (2x+8) and the measure of &lt;2 = (8x + 22). What is the measure of &
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Answer:

Step-by-step explanation: Since the given problem states that the two angles, angle 1 and angle 2 form a linear pair, this means that they form a 180° line, so that:

measure angle 1 + measure angle 2 = 180°

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measure angle 2 = 2 (measure angle 1) + 6

hence, substituting this into the first equation:

measure angle 1 + 2 (measure angle 1) + 6 = 180

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The​ quality-control manager at a compact fluorescent light bulb​ (CFL) factory needs to determine whether the mean life of a la
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Answer:

The mean life of a large shipment of CFL bulbs is equal to 7,520 hours.

Step-by-step explanation:

The quality control manager wants to determine whether the mean life of a large shipment of CFL bulbs is equal to 7,520 hours.

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<em>H₀</em>: The mean life of a large shipment of CFL bulbs is equal to 7,520 hours, i.e. <em>μ</em> = 7520.

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Decision rule:

If the <em>p</em>-value of the test is less than the significance level then the null hypothesis will be rejected.

Compute the <em>p</em>-value for the two-tailed test as follows:

p-value=2\times P(Z

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The <em>p</em>-value of the test is 0.1902.

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Thus, it can be concluded that the mean life of a large shipment of CFL bulbs is equal to 7520 hours.

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