HELP!! I will give 30 poins and brainliest to the one who gives me the right answer FIRST!!

Answer:

C. (5.097, 7.404)

Step-by-step explanation:

EDGE 2020

The 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

The formula for the confidence interval is:

CI = x ± tα/2 × (s/√n)

where x is the sample mean,

s is the sample standard deviation,

n is the sample size, and

tα/2 is the t-value with (n-1) degrees of freedom and a confidence level of 90%.

From data (x) is 6.25 hours and

s=  4.33 hours.

We also know the sample size (n) is 40.

To find the t-value with (n-1) degrees of freedom and a confidence level of 90%, we can use a t-table.

For 39 degrees of freedom and a confidence level of 90%

Let us find that the t-value is 1.684.

Substituting the values we have into the formula, we get:

CI = 6.25 ± 1.684 × (4.33/√40)

CI = (5.097, 7.404)

Therefore, the 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).

To learn more on Statistics click:

https://brainly.com/question/30218856

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Answer:

1. 1/2 and 2/4

2. They are equivalent because it you put them in simplest form they are going to be equal

3. No

4. They are not equivalent because 1/8 and 1/5 isn't the same so they aren't going to be equal

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

the answer is 95.2

plz give brainliest

Answer:

volume = 4468.8 m3

surface area = 2021.6 m2

Answer:

Percentage of the garden that is used to make the pond = 53.8%

Step-by-step explanation:

Area of a garden = 104 m^2

Area of a garden = 104 m^2Area of a pond = 56 m^2

Percentage of the garden that is used to make the pond

= (56/104) × 100%

= 53.8%

Hope this Helps!!!

Answer:

yes I can help you and I can answer your questions!

Answer:

You would need 48

Step-by-step explanation:

divide 36.00/0.75

Answer:

Step-by-step explanation:

Ice forms when the temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius). When you add salt, that temperature drops: A 10-percent salt solution freezes at 20 °F (-6 °C), and a 20-percent solution freezes at 2 °F (-16 °C). On a roadway, this means that if you sprinkle salt on the ice, you can melt it.

Answer: ( 4, 5/4)

Step-by-step explanation: x = 4, y = 5/4

Answer:

Hi! The answer to your question is -646

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

Answer:

A = 140° B = 30° C = 10°

Step-by-step explanation:

3x + 135 = 180

3x = 45

x = 15°

2 X 15 = 30

1 X 15 - 5 = 10

Answer:

90 8/15 hope this helps byee

Answer:

 area of the square pyramid = a2+ 2al (or) a2+2a √a24+h2 a 2 4 + h 2 .

Step-by-step explanation:

The surface area of a square pyramid is the sum of the areas of all its 4 triangular side faces with the base area of the square pyramid. If a, h, and l are the base length, the height of the pyramid, and slant height respectively, then the surface area of the square pyramid = a2+ 2al (or) a2+2a √a24+h2 a 2 4 + h 2 .

Answer is 25.34

You just have to divide 36.20 by 10 which is 3.62 and then you multiply 7

Answer:

rate is 55 i think

Step-by-step explanation:

take 385 ÷ 7 and you get how far they travel in one hour

Answer:

9.5

Step-by-step explanation:

Is that what you mean by value?

I need a better explanation

Answer:

Step-by-step explanation:

It is nine and a half. What do you exactly mean by value?

12.59

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Answer: B

Step-by-step explanation:

Answer:

Angle = A

A7 = A4 (Alternate interior angles)

A14 = A11 (Vertically opposite angles)

A11 = A6(Corresponding angles)

A4 = A14 (Given)

From this, we can get A6 = A4

A6 and A4 are alternate angles and are equal. So c and d are parallel.

A7 + A10 = 180 (Linear pair of angles) - ( 1 )

A13 = A10(Alternate interior angles)

Putting A13 in place of A10 in ( 1 ),

A7 + A13 = 180

Hence proved

Ask doubts if any

Answer:

Step-by-step explanation:

Answer:

2.23

Step-by-step explanation:

Answer:

please the answer is D

I'm very interested in the question

Answer:

0.25 or 5/12 - 1/6

Step-by-step explanation:

-1/2(-5/6+1/3), do PMDAS. (-5/6) = -0.833 (repeated) and (1/3) = 0.333 (repeated) and you add them both (-0.833 + 0.333) = -0.5 and -1/2 = -0.5 and when you multiply them both it would equal 0.25. or another explanation for the answer is 5/12 = 0.41666666666 and 1/6 = 0.16666666666 and when you subtract them both you get 0.25, I hope this was helpful.

Answer:

[tex]\frac{9}{2} or 4.5[/tex]

Step-by-step explanation:

4x^2+ 12x = 135

D=b²−4ac=122−4(4)(−135)=144+2160=2304=48²

[tex]x_{p}= \frac{-12+48}{8} =\frac{36}{8}=\frac{9}{2}=4.5[/tex]

Answer:

64 boards:)

Step-by-step explanation:

Answer:

so Area = length x width

Area = 450,  width = 9

450 = 9 x length

divide 450 by 9, and you have the length.

Perimeter = length + length+ 9 + 9

and you got your perimeter!

Step-by-step explanation:

Answer:

It will not provide a representative random sample.

Step-by-step explanation:

This is because kids under five will only leave the house if they are going to the park or doing something with there parents. They don't go to school either so they most likely won't leave during the hours of 7 AM and 8 AM.

Hope this helps! :D

- Luna

Answer:

c

Step-by-step explanation:

4 4 9

sum of 2 sides of a triangle should be greater than the third side.