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3 years ago

6. Jack is building a rectangular dog pen that he wishes to enclose. The width of the pen is 2

Mathematics

1 answer:

san4es73 [151]3 years ago

3 0

Answer:

Pretty sure the width is 3 and the length is 5.

Step-by-step explanation:

What are the multiples of 15 (3 and 5) those are the only multiples besides 1 and 15. If that makes sense.

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Multiply factor 8(x-3y)(x+3y) to determine the original polynomial

Inessa [10]

If I'm doing this correctly, you would need to multiply everything inside the parenthesis by 8. So it would be 8x-24y·8x+24y. I'm sorry if that's not right, but that is my interpretation of the problem. Hope I was of some assistance :)

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3 years ago

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1 with the fraction of 9/40 percentage

Slav-nsk [51]

9 is 22.5% of 40 if that's the question.

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DerKrebs [107]

Answer:

r = 1/5

Step-by-step explanation:

Substitute x=15 and y=3 into the equation given.

Transpose so that r = 3/15

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3 years ago

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Data from the U.S. Department of Education indicates that 59% of business graduate students from private universities had studen

san4es73 [151]

Answer: The mean of this distribution = 61.95

The standard deviation of this sampling distribution (i.e., the standard error= 0.048

Step-by-step explanation:

Given : Data from the U.S. Department of Education indicates that 59% of business graduate students from private universities had student loans.

i.e. proportion of business graduate students from private universities had student loans : p=0.59

sample size : n=105

Then , the mean of the distribution is given by :-

$\mu= np = (105)(0.59)=61.95$

∴The mean of this distribution = 61.95

Then standard deviation of this sampling distribution is given by :-

$\sqrt{\dfrac{p(1-p)}{n}}\\\\=\sqrt{\dfrac{(0.59)(1-0.59)}{105}}\\\\=\sqrt{0.00230381}\\\\=0.047998015832\approx0.048$

∴The standard deviation of this sampling distribution (i.e., the standard error= 0.048

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3 years ago

The Table below gives you The population of Texas since 1970. Find the average rate if change from 1970 to 1090

ruslelena [56]

Answer:

Average rate of change = 0.29 million per year

Step-by-step explanation:

Average rate of change in the population from year 1970 to year 1900 is given by the formula,

Average rate of change = $\frac{\text{Population in year 1990-Population in year 1970}}{1990-1970}$

= $\frac{17-11.2}{1990-1970}$

= $\frac{5.8}{20}$

= 0.29 million per year

Therefore, average rate of change in the population from 1970 to 1990 will be 0.29 million per year.

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3 years ago