Answer:
-0.5436
Fairly strong negative correlation
Value of car decreases as age increases.
Explanation:
Age of car(x)
9
7
11
12
8
7
8
11
10
12
6
6
Selling price ($)
8.1
6.0
3.6
4.0
5.0
10.0
7.6
8.0
8.0
6.0
8.6
8.0
The correlation Coefficient calculated using the correlation coefficient calculator is - 0.5436. This depicts a fairly strong negative (negative value in Coefficient value) correlation exists between the age of a car and its value. This means that, the value of a car decreases as age increases.
Answer:
In the first equation x=4 or x=-3
In the second equation x=-4 or x=3
Explanation:
The first equation x^2 − x − 12 can be factorized as follows:
x^2-4x+3x-12
x(x-4)+3(x-4)
x-4=0 or x+3=0
x=4 or x=-3
It is noteworthy that -x was rewritten as -4x+3x in order to solve the equation
The second equation x^2 + x − 12 can be factorized as below:
x^2+4x-3x-12
x(x+4)-3(x+4)
x+4=0 or x-3=0
x=-4 or x=3
It is noteworthy that +x was rewritten as 4x-3x in order to solve the equation
The statement which describes this phenomenon is; Electrons flow freely into the magnetic field, causing the paper clips to move.
<h3>Metals and the Electromagnetic field</h3>
- Metals are made up of positively charged atoms of elements in which case the outermost orbital of these metal atoms contain electrons revolving round them.
On this note, upon interaction with the electromagnetic field posed by an electromagnet placed nearby, it follows that;
- The Valence electrons flow freely into the magnetic field created by the electromagnet and hence, causes the paperclip to move.
The complete question contains options given are;
Metal paper clips do not attract or repel each other. When an electromagnet is placed nearby, the paper clips can be observed to move toward it. Which statement describes this phenomenon?
- Paper clips turn into permanent magnets after exposure to a magnetic field.
- The electromagnet reacts to the strong force of attraction from paper clips.
- Electrons flow freely into the magnetic field, causing the paper clips to move.
- Magnetic domains within the paper clips align with the magnetic field.
Read more on electromagnets and metal chips;
brainly.com/question/5602221
Answer:
A positively charged benzenonium intermediate
