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2 years ago

What is an advantage of the scientific method?

SAT

1 answer:

JulsSmile [24]2 years ago

3 0

Answer:

In conclusion the major advantage of the scientific method is that the data it collects is empirical. The information is gained through direct observations and experiments. This is an advantage as it allows psychologists to make claims about the truth of the theory.

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Suppose y varies directly with x. if y= 24 when x = -6, what is y when x = -4?

stealth61 [152]

The answer would be y=16

7 0

3 years ago

What is the length of AB with endpoints A(-1,0) and B(4,-9)

lord [1]

Answer:

10.296

Explanation:

From point A to point B, the line goes 5 spaces to the left and 9 spaces down. You can use the Pythagorean theorem and solve for the c value. 5 squared is 25, 9 squared is 81, 25 + 81 = 106. The square root of 106 is approximately 10.296. Hope that helped

6 0

2 years ago

How did you learn to write what was particularly difficult in writing.

8090 [49]

Answer:

through practice. Practise makes perfect. Another factor that can help you improve your writing is using same key words and linking words. The difficult part must be the conference. You should connect your centences in a way that it makes sense

3 0

2 years ago

Speed, Velocity or Acceleration?

levacccp [35]

Answer:

Velocity

Explanation:

Speed is how fast something moves.

Velocity is how fast it moves and in what direction it moves in.

Acceleration is the change in how fast it moves. I.e. if it speed up or slows down.

Here we are given the speed of the train (75mph) and the direction (north), therefore it is velocity.

Hope this helped!

7 0

3 years ago

wariber [46]

<h2>Right answer: I and II only </h2>

If we already have the formula to find how temperature measured in degrees Fahrenheit, relates to a temperature in degres Celsius:

$C=(F-32)\frac{5}{9}$ (1)

We can know the formula to find how temperature measured in degrees Celsius, relates to a temperature in degres Fahrenheit, only by isolating F:

$F=(\frac{9}{5}C)+32$ (2)

Having both formulas, let’s begin:

I) If we want to prove that a temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 5/9 degree Celsius:

Beginning with $1\ºF$ :

$C=(1\ºF-32)\frac{5}{9}=-17.22\ºC$

This means: $1\ºF=-17.22\ºC$

Now we are going to increase 1 degree Farenheit. In other words, we are going to use $2\ºF$ :

$C=(2\ºF-32)\frac{5}{9}=-16.66\ºC$

This means: $2\ºF=-16.66\ºC$

Calculating the difference between $-16.66\ºC$ and $-17.22\ºC$ :

$-16.66\ºC-(-17.22\ºC)=0,55\ºC$ >>>>This is equal to 5/9 degree Celsius, hence is correct

II) If we want to prove that a temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit:

Beginning with $1\ºC$ :

$F=(\frac{9}{5}1\ºC)+32$

$F=33.8\ºF$

This means: $1\ºC=33.8\ºF$

Now we are going to increase 1 degree Celsius. In other words, we are going to use $2\ºC$ :

$F=(\frac{9}{5}2\ºC)+32$

$F=35.67\ºF$

This means: $2\ºC=35.67\ºF$

Calculating the difference between $35.67\ºF$ and $33.8\ºF$ :

$35.67\ºF-33.8\ºF=1.8\ºF$ >>>>This is a proof of the statement, hence is also correct.

<h2 />

III) If we want to prove that a temperature increase of 5/9 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius:

Beginning with $1\ºC$ :

$F=(\frac{9}{5}1\ºC)+32$

$F=33.8\ºF$

This means: $1\ºC=33.8\ºF$

Now we are going to add $\frac{5}{9}\ºF$ :

$33.8\ºF+\frac{5}{9}\ºF=34.35\ºF$

And use this value in the Celsius formula:

$C=(34.35\ºF-32)\frac{5}{9}=1.30\ºC$

This means: $1.30\ºC=34.35\ºF$

In other words: An increase in 5/9 degree Fahrenheit is equivalent to a temperature increase of 1.30 degree Celsius, <u>not 1 degree Celsius</u>.

Therefore this statement is incorrect.

4 0

3 years ago