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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 =...

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...

 
 
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 =...

Note: Keywords which are vital for marks will be highlighted in bold.

Within all populations, there is variation.

This is due to di...

Prepositions affect the case of the noun after them, and two-way prepositions can either put this noun into the dative or the accusative, depending on if there is movement in the sentence...