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A 2 kW electric fire is switched on for 30 minutes. How many Units of electricity does it use?

Units of electricity are measured in kWh (kilowatt-hours).
We have our power in kW (2 kW)
We have our time in minutes (30 minutes)
Looking at the units, we can see that:
kW x minutes =...

AW
Answered by Andrew W. Physics tutor
18867 Views

How do bacteria acquire resistance to antibiotics?

Spread of mutations via vertical and horizontal transmission

Once a bacterium has a mutation that provides resistance to an antibiotic, it can spread through replication or through...

HL
Answered by Hannah L. Biology tutor
7178 Views

Given that 346 × 27 = 9342 , work out 34.6 × 2.7

Lets compare the numbers in the question:
34.6 x 2.7 is the same as  346/10 x 27/10    (decimal to fraction)
 
therefore...
34.6 x 2.7 is the same as ( 346 x 27 ) /100  (multiplying to...

AW
Answered by Andrew W. Maths tutor
6948 Views

Factorise x² + 10x + 16

 
 
This is a quadratic equation.
When we are asked to facorise a quadratic equation, we should label the 3 parts of it a, b and c.
 
x² + 10x + 16
a   b    c         so  a =...

AW
Answered by Andrew W. Maths tutor
65099 Views

How do distinguish myself from the rest when applying to medical school?

When it comes to medicine, everyone has done everything. Everyone has the hospital work experience, endless hours of volunteering, perfect grades and all the knowledge about the healthcare system. So w...

ZA
2737 Views

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