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Dmitrij [34]
2 years ago
5

Solve for x. A. 19.25 B. 14 C. 10 D. 6.5

Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
4 0

Answer:

I think it is C

Step-by-step explanation:

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
son4ous [18]

Answer:

Step-by-step explanation:

Length=18

Width/Breadth =10

Height=2

The formula for a diagonal face of a cuboid is=√(l²+ b²)

Face diagonal=√(18²+10²)

= 20.59 to 2.d.p

The formula for the body diagonal of a cuboid is=√(l² + b² + h²)

Body diagonal=√(18² + 10² + 2²)

=20.69 to 2.d.p

8 0
2 years ago
A study was done to determine the average number of homes that a homeowner owns in his or her lifetime. For the 50 homeowners su
ipn [44]

Answer:

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

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

df = 50 - 1 = 49

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0096

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.0096\frac{3.8}{\sqrt{50}} = 1.1

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 5.1 - 1.1 = 4

The upper end of the interval is the sample mean added to M. So it is 5.1 + 1.1 = 6.2.

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

7 0
2 years ago
Solve the division problem using the area model strategy. Upload a picture or video to show your work.
ohaa [14]

Answer:

45.333...

Step-by-step explanation:

Try using a long division problem then try the area model strategy

8 0
3 years ago
4. How many total hours does a grocery clerk work if he
Fynjy0 [20]
The answer is 27:25 but it’s not on your letters
6 0
3 years ago
Read 2 more answers
HELP ASAP!
aliina [53]

Answer:

i dont know lol

4 0
3 years ago
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