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Lilit [14]
2 years ago
7

*quickest correct answer gets brainlyest*

Mathematics
1 answer:
gavmur [86]2 years ago
4 0

Answer:

16600

Step-by-step explanation:

Love doing these standards forms.

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How can systems of equations be used to represent situations and solve problems?
uysha [10]

Answer:

To solve real world problems, we can use the relationship between the quantities and form equations which represent the situation given in the problem. Then, we can use these equations to solve the problems.

Step-by-step explanation:

4 0
2 years ago
The company made a partial payment of $600 cash on the equipment purchased in transaction d.
BARSIC [14]

Answer: can u finish the question

Step-by-step explanation:

6 0
1 year ago
Assume that a computer was used to generate the given confidence interval for the population mean. Find the sample mean or margi
stealth61 [152]

Answer:

The sample mean is

b.3.55

The margin of error is

0.32

Step-by-step explanation:

Deep explanation about a confidence interval

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*215 = 353.675

The lower end of the interval is the mean subtracted by M. So it is 6.4 - 0.3944 = 6.01 hours.

The upper end of the interval is the mean added to M. So it is 6.4 + 0.3944 = 6.74 hours.

In this problem:

The deep explanation is not that important.

We just have to recognize that the interval has a lower end and an upper end. The distance from both the upper and the lower end to the mean is M. This means that the sample mean is the halfway point between the lower end and the upper end.

The margin of error is the distance of these two points(lower and upper end) to the mean.

In our interval

Lower end: 3.23

Upper end: 3.87

Sample mean

M = \frac{3.23 + 3.87}{2} = 3.55

So the correct answer is:

b.3.55

The margin of error is

3.87 - 3.55 = 3.55 - 3.23 = 0.32

4 0
3 years ago
I will mark brainliest
matrenka [14]
A: 2,5
B: 3,1
C: -2,4



Explanation:


When you’re moving right and up you would add however many numbers you moved up to the original points because going right on a graph makes the X a larger number, and going up makes it larger.
5 0
3 years ago
PLEASE HELP! SUPER EASY QUESTION! THANK YOU!
kobusy [5.1K]

Answer:

Step-by-step explanation:

a+pR^2-2pr^2, since R=15 and r=7.5

A=225p-112.5p

A=112.5p

a= 353.25ft^2

8 0
3 years ago
Read 2 more answers
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