According to the table, how many people got 8 or more hours of sleep?

− ( − ) = what is x

skelet666 [1.2K]

Answer:

There is no x the equation so there is really no answer for x

Step-by-step explanation:

5 0

3 years ago

P decreased by the difference of q and r

icang [17]

Answer:

Do you have an image? :))

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is the sum of the diagonals in a rectangle whose area is 25v3 and whose width is 5?

Nastasia [14]

Answer:

Sum of diagonals = 20 units

Step-by-step explanation:

$A(rectangle)=25\sqrt 3\: units^2\\w(rectangle) =5\: units$

To find: Sum of diagonals

$A(rectangle)=l(rectangle)\times w(rectangle)$

$\implies l(rectangle)=\frac{A(rectangle)}{w(rectangle)}$

$\implies l(rectangle)=\frac{25\sqrt 3}{5}$

$\implies l(rectangle)={5\sqrt 3}\: units$

Let the diagonals of the rectangle be $d_1\:\&\:d_2\: units$

Diagonals of a rectangle are equal in measure.

$\implies d_1=d_2=\sqrt{l(rectangle)^2+w(rectangle)^2}$

(By Pythagoras Theorem)

$\implies d_1=d_2=\sqrt{(5\sqrt 3)^2+(5)^2}$

$\implies d_1=d_2=\sqrt{75+25}$

$\implies d_1=d_2=\sqrt{100}$

$\implies d_1=d_2=10\: units$

$Sum \:of \:diagonals = d_1+d_2$

$\implies Sum \:of \:diagonals = 10+10$

$\implies Sum \:of \:diagonals = 20\: units$

4 0

3 years ago

Kelly has a ribbon that is 60 inches long she cuts at 40% of ribbon for an art project while working on the project she decided

Amiraneli [1.4K]

Answer:

8.4 inches

Step-by-step explanation:

To find the amount of inches, multiply the length by the percent. A percent is 40% but can also be written as a decimal conversion as 0.4. Then 40% of 60 inches is 0.4(60)= 24 inches.

However, she didn't use all 24 inches. She used 35%. This converts to 0.35 and then multiply for 0.35(24) = 8.4 inches.

She used 8.4 inches.

4 0

3 years ago

In the following hypothetical scenarios, classify each of the specified numbers as a parameter or a statistic. 1. There are nine

sasho [114]

Answer:

Step-by-step explanation:

In the following hypothetical scenarios, classify each of the specified numbers as a parameter or a statistic.

1. There are nine justices currently serving in the United States Supreme Court, and 44% of them were appointed after the year 2000, The 44% here is a __Parameter________.

2. In a 2011 Gallup poll of 1008 adults living in the United States, 11% said they are satisfied with the condition of the national econormy. The 11% here is a ___Statistic______

3. The survey results from 12 local parks show the mean height of 60 ft for mature oak trees. The mean height of 60 ft is a ___Statistic_____.

4. The 36 students in Ms. Dunham's second grade class have a mean height of 64 inches with a standard deviation of 1.3 inches. The 1.3 inches is a ___statistic_______.

5. In a random sample of homeowners in the United States, it is found that 34% of the sampled homeowners renew their home warranty. The 34% here is a ___statistic_____.

Note that the characteristic of a population is parameter and characteristic of a sample is statistic

3 0

4 years ago