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Naily [24]
4 years ago
10

Select the TRUE statement. A) (-4) ÷ 2 = -2 ÷ 4 B) (-4) ÷ 2 = 2 ÷ 4 C) (-4) ÷ 2 = 4 ÷ 2 D) (-4) ÷ 2 = 4 ÷ -2

Mathematics
2 answers:
Ghella [55]4 years ago
6 0

A) (-4) ÷ 2 =-2 ÷ 4

-2 ≠ -1/2 ...........FALSE

B) (-4) ÷ 2 = 2 ÷ 4

-2 ≠ 1/2 ...........FALSE

C) (-4) ÷ 2 = 4 ÷ 2

-2 ≠ 2 ...........FALSE

D) (-4) ÷ 2 = 4 ÷ -2

-2 = -2 ...........TRUE

Answer:

D) (-4) ÷ 2 = 4 ÷ -2

BARSIC [14]4 years ago
5 0

The correct answer would be D.

This is because both equations have the 4 divided by the 2 and each equation has a negative number, so the answer would have the same negative answer.

-4 / 2 = -2

4 / -2 = -2

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Based on the information provided, the future size of the population can be modelled by using an exponential function:

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Substituting the given parameters into the formula, we have;

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Which pair of expressions below are equivalent? a. −4−8 and 4+8 b. −4−8 and −4+8 c. −4−8 and −4−(−8) d. −4−8 and −4+(−8)
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If the inspection division of a county weights and measures department wants to estimate the mean amount of soft-drink fill in 2
nikklg [1K]

Answer:

n=97

Step-by-step explanation:

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

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We know that the margin of error for a confidence interval is given by:

Me=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

The next step would be find the value of \z_{\alpha/2}, \alpha=1-0.95=.05 and \alpha/2=0.025

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z_{\alpha/2}=1.96

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\sqrt{n}=\frac{z_{\alpha/2} \sigma}{Me}

n=(\frac{z_{\alpha/2} \sigma}{Me})^2

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n=(\frac{1.96(0.05)}{0.01})^2 =96.04

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4 years ago
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