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3 years ago

I need help with this question please help

Mathematics

2 answers:

bezimeni [28]3 years ago

6 0

Answer:

Its A

Step-by-step explanation:

True [87]3 years ago

4 0

Answer:

A is the correct plot.

Step-by-step explanation:

Its the only graph that has the right amount of dots to correspond to the graph for instance there are 2 9's and A has two dots above 9.

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Jsjjss pls help its uRGeNT

Sedaia [141]

Answer: y=7x

Step-by-step explanation:

The way I did it was, I looked at the chart. The highest it goes is 30 and 210. So for your answer, you have to multiply. 7x30 gives you 210 and there y=7x

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3 years ago

HELP PLZ! I will choose the Brainliest answer if correct.

Eva8 [605]

The <span>x-intercept </span>indicates that the entire pile of dirt will have been moved after 6 hours.

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carly and rob combined their dvd collections. now they have 42 dvds in all carly had 4 more dvds than rob. how many dvds did car

mrs_skeptik [129]

So r+c=42 c=4+r subsitute c=4+r for r in r+c=42 r+4+r=42 add like terms 2r+4=42 subtract 4 from both sides 2r=38 divide both sides by 2 r=19 rob=19 subsitute r=19 for r in c=4+r c=19+4 carly=23

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3 years ago

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A survey of 80 randomly selected companies asked them to report the annual income of their presidents. Assuming that incomes are

Artyom0805 [142]

Answer:

The 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

Step-by-step explanation:

The information provided is:

$n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%$

The critical value of <em>z</em> for 90% confidence level is, 1.645.

Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)$

Thus, the 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

This interval implies that there is 90% probability that the true mean annual income of all company presidents is within this interval.

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3 years ago

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Aneli [31]

Answer: rasie 13 to 3/4

Step-by-step explanation:

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