Answer:
Step-by-step explanation:
I suppose the expression is this 
We can factor out this expression ( Remember, find two numbers that the sum is 9 and the product is 8. The numbers are 8 and 1)
The correct option is 4. PSU.
The hardware part that would be checked next is PSU.
<h3>What is Power Supply Unit PSU?</h3>
An internal piece of IT hardware is known as a power supply unit (PSU). Despite their name, power conversion devices, or PSUs, do not really supply power to systems.
Some key features of PSU are-
- A power supply specifically transforms alternating high voltage current (AC) to direct current (DC) and regulates the DC output voltage to the precise tolerances needed for contemporary computing components.
- There is, however, a PSU substitute that may be utilized in specific circumstances.
- Electrical power can be transported inside network cables using Power over Ethernet (PoE), freeing the device from being bound to an outlet.
- Because PoE can deliver wireless access points wherever it is most convenient and uses less room for wiring, it is perfect for systems that need greater flexibility.
To know more about power supply unit, here
brainly.com/question/24249197
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The correct question is-
A customer complains that his old tower PC doesn't always turn on and randomly shut off for hours. The HDD and RAM both tests both come back with positive results.
What hardware part would you check next?
- NIC
- EXT-USB HDD
- PS/2
- PSU
- SSD
Answer:
- there are 4 complex solutions
- 3 real zeros and 2 complex zeros
Step-by-step explanation:
1. Descarte's rule of signs tells you there are 0 positive real roots and 0 or 2 negative real roots. (for positive x, signs are ++++ so have no changes; for negative x, signs are ++-+, so have 2 changes.) A graph shows no real roots.
2. There are 3 sign changes in the given polynomial, so 3 or 1 positive real roots. When the sign of x is changed, there are 2 sign changes, so 0 or 2 negative real roots. A graph shows 2 negative and one positive real root (for a total of 3), so the remaining 2 roots are complex.
THis is a cool question.
1) Use the point slope form to find the equation of the lines between two of the points (choose two points that when a line is drawn between them make a chord on the circle).
2) Use the midpoint of a line equation to find the midpoint of the line, then find the slope of the line that is perpendicular at that point and write an equation for it.
3) Then do the same thing for the other two points that form a chord on the circle.
4) Then set the two equations equal to each other and solve. The point where they meet is the circumcenter.
Answer:
28 Square units
Step-by-step explanation:
