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aleksandr82 [10.1K]
3 years ago
15

A daily supply of oxygen for a particular multicellular organism is provided by 625 sqaure feet of lawn. A total of 1,250 sqaure

feet of lawn would provide the daily supplies of oxrgen for how many organisms
Mathematics
1 answer:
loris [4]3 years ago
4 0

Answer:

2

Step-by-step explanation:

From the Question:

For daily supply of oxygen for a particular multicellular organism 625, square feet of lawn I needed.

Simply, 1250 feet of lawn will make supplies for:

= 1250/ 625

= 2

2 multicellular organism.

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An environmental scientist wants to use a 95% confidence interval to estimate the mean number of hours per day her solar panel r
MissTica

Answer:

a) The 95% confidence interval for the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

b) The confidence interval is built from a sample of 48 days. However, we can be 95% sure that for all days, the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

Step-by-step explanation:

We have the standard deviation for the sample. So we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 48 - 1 = 47

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 47 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0117

The margin of error is:

M = T*s = 2.0117*2.3 = 4.6

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 7.1 - 4.6 = 2.5 hours of sunlight per day

The upper end of the interval is the sample mean added to M. So it is 7.1 + 4.6 = 11.7 hours of sunlight per day

a) Compute the 95% confidence interval for the mean.

The 95% confidence interval for the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

b) Explain your confidence interval from part (a) in context.

The confidence interval is built from a sample of 48 days. However, we can be 95% sure that for all days, the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

6 0
3 years ago
Solve the following equation: 8 - 9x = 27.
bearhunter [10]

The given equation is

8-9x=27

To solve for x, we have to subtract 8 to both sides

8-9x-9 = 27-8 \\ -9x = 19

Now we need to get rid of -9 from the left side, and for that we do division

\frac{-9x}{-9} = \frac{19}{-9}

x = - \frac{19}{9}

4 0
3 years ago
In a particular​ year, a total of 44,064 students studied in two of the most popular host countries when traveling abroad. If 83
lorasvet [3.4K]

Answer:

The answer would be 35066 :)

Step-by-step explanation:

(y+5554) + y = 64578

Combine like terms

2y = 64578-5554

2y = 59024

y = 29512

x = 29512 + 5554 = 35066

6 0
2 years ago
A pyramid has a square base with side s. the hight of the pyramid is 2/3 that of its side. What expression for the volume of the
Bess [88]

i have no clue sorry i cant help you :)

6 0
3 years ago
F(0) = 2 and f(2) = 4
RUDIKE [14]

Answer:

Use the slope formula and slope-intercept form  

y

=

m

x

+

b

to find the equation.

f

(

x

)

=

3

x

−

1

Step-by-step explanation:

4 0
3 years ago
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