Find the distance between points P(8, 2) and Q(3, 8) to the nearest tenth

For each of the following scenarios, say whether the data should be treated as independent or paired samples. Explain briefly.

Tanya [424]

Answer:

1) C

2) C

3) A

Step-by-step explanation:

1) The right answer is C.

Each volunteer is a pair, consisting of the test of each chair. The difference can be compared for each individual and treated as a paired t-test.

2) The right answer is C.

There is no paired relation between the houses of each sample. There are two independent samples with the same sample size.

3) The right answer is A.

The hours are selected at random, so there is no relation between the hours picked for each worker. There are two indpendent samples with the same sample size.

4 0

3 years ago

the equation y=5,280x gives the number of feet,y,in x miles.what does the number 5,280 represent in this relation ship

siniylev [52]

The term 5280 represents the number of feet in a mile in this relationship y=5,280x.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The linear equation is:

y=5,280x

The number 5,280 here represents the number of feet in a mile in this connection.

The equation is calculated:

Since Y=5,280x, the equation

It gives the quantity, y, of feet in x miles.

We may conclude that 5,280 represents the number of feet in a mile in this relationship.

Thus, the term 5280 represents the number of feet in a mile in this relationship y=5,280x.

Learn more about the linear equation here:

brainly.com/question/11897796

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7 0

1 year ago

A gas station stores its gasoline in a tank under the ground. The tank is a cylinder lying horizontally on its side. (In other w

hoa [83]

Answer:

64,717.36 Joule is the total amount of work needed to pump the gasoline out of the tank.

Step-by-step explanation:

Volume of cylinder = V

Radius of cylinder = r = 0.5 m

Height of the cylinder = 5 m

Volume of cylinder = $\pi r^2h$

$V=3.14\times (0.5 m)^2\times 5 =3.925 m^3$

Mass of gasoline = m

Density of gasoline = d = $673 kg/m^3$

$m=d\times V=673 kg/m^3\times 3.925 m^3=2,641.525 kg$

Work done to pump the gasoline out of the tank W

Acceleration due to gravity = g $.8 m/s^2$

The center of gravity of fuel in fully filled tank will be centre so, the value of h = 2 m + 0.5 m = 2.5 m

$W =m\times g\times h$

$W=2,641.525 kg\times 9.8 m/s^2\times 2.5 m=64,717.36 J$

64,717.36 Joule is the total amount of work needed to pump the gasoline out of the tank.

6 0

2 years ago

Which ordered pair is a solution of the equation y = 3x?

balandron [24]

I believe it’s b or c... Hope this helps!

3 0

2 years ago

Yoshi is 5% taller today than she was one year ago. Her current height is 168 cm. How tall was she one year ago

NemiM [27]

155.6 CM
I divided 168 by 100 to find 1% then i got 1.68cm then I times that by 5 to find 5% which was 8.4cm. Finally I subtracted 168 and 8.4 to get 155.6 CM
I hope that helped :)

5 0

2 years ago

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