J.J. Thomson used a cathode ray tube to discover the electron. Cathode ray tubes are vacuum tubes that contain two electrodes - one on each side. One of the electrodes (the cathode) fires electrons at the other (the anode) when voltage is added to the system.
Answer:
Explanation:
Firstly finding
So,
Substitute
Exchange the values of x and y
Solving for y
Adding 5 to both sides
Dividing both sides by 10
Replace
For x = -4
Answer:
Please check the explanation
Explanation:
The best two methods will be:
Factor by grouping
Factor by grouping deals with establishing a smaller groups from each term.
Therefore, the expression becomes
Now factor out the greatest common factor (GCF) which is 2
Factor out the GCF
Given the expression
factor out common term 2
∵
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