X= ????? please help
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The current when the resistance is 10 ohms is 24 amps
<h3>What are variations?</h3>Variations are simply data that change in values (i.e. not constant)
<h3>Types of variation</h3>The types of variations are:
- Direct variation
- Inverse variation
- Joint variation
- Combine variation
From the complete question (see attachment), we have the following highlights
- The variation is an inverse variation
- When current (I) is 30 amps, the resistance (R) is 8 ohms
An inverse variation is represented as:
Where k represents the constant of variation.
The above equation can be rewritten as:
So, we have:
When the resistance is 10 ohms, we have:
Divide both sides by 10
Rewrite the above equation as:
Hence, the current when the resistance is 10 ohms is 24 amps
Read more about inverse variation at:
Answer:
-23
Step-by-step explanation:
A quadratic equation is given to us and we are interested in finding the discriminant of the quadratic equation . As we know that ,
If the quadratic equation is in Standard form ,
The discriminant is ,
The given quadratic equation is ,
On comparing it with the Standard form , we have ,
- a = (-3)
- b = 5
- c = (-4)
So that ,
Also note that if D < 0 , then the roots are complex conjugates .
<h3>Hence the discriminant is (-23).</h3>