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2 years ago

Graph the solution to this inequality on the number line. 1/4x − 2 < − 1 1/2

Mathematics

2 answers:

Shalnov [3]2 years ago

7 0

Answer:

Draw an open circle on 2 and continue the arrow left.

Step-by-step explanation:

balandron [24]2 years ago

3 0

Answer:

x < 2

Step-by-step explanation:

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asambeis [7]

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Step-by-step explanation:

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3 years ago

Each second for 4 seconds, an elevator descends 10 feet. Find the total change in elevation.

NISA [10]

(4 sec) * (-10 ft/sec) = -40 ft.

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3 years ago

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NemiM [27]

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3 years ago

1.3<br> Are there rectangles with the same perimeter? Explain your answer.

ira [324]

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3 years ago

A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to fin

g100num [7]

Answer: $(24.28,\ 27.72)$

Step-by-step explanation:

Given : Sample size : $n=50$

Sample mean : $\overline{x}=26$

Standard deviation : $\sigma =6.2$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=26\pm(1.96)\dfrac{6.2}{\sqrt{50}}\\\\\approx26\pm1.72\\\\=(26-1.72,\ 26+1.72)\\\\=(24.28,\ 27.72)$

Hence, a 95% confidence interval for the population mean = $(24.28,\ 27.72)$

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3 years ago