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gulaghasi [49]
1 year ago
7

23. A football match ended at 16 35 hours. The duration of the match was 1 hour 45 minutes. What time did the football match sta

rt?​
Mathematics
1 answer:
Arturiano [62]1 year ago
3 0
The match started at 1450 hours.
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A sample of 10 adult elephants had an average weight of 12,556 pounds. The standard deviation
kirill [66]

Answer:

The 99% confidence interval of the population mean for the weights of adult elephants is between 12,475 pounds and 12,637 pounds.

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 = 10 - 1 = 9

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 3.25

The margin of error is:

M = T*s = 3.25*25 = 81

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 12,556 - 81 = 12,475 pounds

The upper end of the interval is the sample mean added to M. So it is 12,556 + 81 = 12,637 pounds.

The 99% confidence interval of the population mean for the weights of adult elephants is between 12,475 pounds and 12,637 pounds.

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3 years ago
Here is free points FOR BEINGS NERDS
Maurinko [17]

Answer:

thank u

Step-by-step explanation:

3 0
3 years ago
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The cost of a company's winter banquet is $65 plus $15 for each person attending. Determine the equation that models this proble
Fofino [41]

Answer:

Step-by-step explanation:

65+15x

65+15(44)

65+660

725 is your answer

so 65+15x;$725

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3 years ago
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Plz help ill give u brainlist
Travka [436]

The surface area of the box will be 112 in²

Explanation

According to the given diagram, the shape of the box is Right Rectangular prism.

The formula for the surface area is :

A= 2(w*l+h*l+h*w) , where l= length, w= width and h= height of the rectangular prism

Given in the diagram that, l= 8, w=4 , h=2

So, plugging the values into the formula...

A= 2(4*8+2*8+2*4)\\ \\ A= 2(32+16+8)\\ \\ A=2(56)\\ \\ A=112

So, the surface area of the box is 112 in²

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3 years ago
9·8·7! is equivalent to:<br><br> 9 x 8 x 7<br> 72 x 5,040<br> 504!
liq [111]

Answer:

\large\boxed{9\cdot8\cdot7!=72\times5,040}

Step-by-step explanation:

n!=1\cdot2\cdot3\cdot...\cdot n\\\\\text{Therefore}\\\\7!=1\cdot2\cdot3\cdot4\cdot5\cdot6\cdot7=5,040\\\\9\cdot8=72\\\\\text{Finally:}\\\\9\cdot8\cdot7!=72\times5,040

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