3 years ago

Which best describes the vertices

Mathematics

1 answer:

Anastasy [175]3 years ago

3 0

The figure that is made up when all these points are plotted on a graph is a square.

Just in case, I attached an image of all the points plotted on the graph.

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Find the sales tax for a lawnmower that cost 265.00 at a 6% tax rate?

maksim [4K]

Answer:

C. $15.90

Step-by-step explanation:

6% to a decimal is 0.06. Multiply 265.00 * 0.06 to get the answer.

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3 years ago

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An environmental science teacher at a high school with a large population of students wanted to estimate the proportion of stude

AnnZ [28]

Answer:

60 students

Step-by-step explanation:

The confidence interval of a proportion is given by:

$p\pm z*\sqrt{\frac{p*(1-p)}{n} }$

Where 'p' is the proportion of students who responded 'yes', 'z' is the z-score for a 95% confidence interval (which is known to be 1.960), and 'n' is the number of students in the sample.

If the confidence interval is from 0.584 to 0.816, then:

$p=\frac{0.584+0.816}{2}=0.7 \\0.816-0.584=2*(1.96*\sqrt{\frac{p*(1-p)}{n}}) \\0.116=1.96*\sqrt{\frac{0.7*(1-0.7)}{n}}\\n=16.8966^2*(0.7*0.3)\\n=60\ students$