Top answers

What does Pythagoras's theorem state?

It states that for a right-angle triangle, the square of the hypotenuse equals the sum of the squares of the other sides. So if a denotes the hypotenuse, a^2 = b^2 + c^2.
RV
Answered by Rohan V. • Maths tutor
5128 Views

For a vehicule with a constant acceleration (5 m/s^2) starting at rest, how long would it take to travel 1 km?

as the acceleration is constant, to travel 1km=1000m, we use 1000 m =(1/2) (5 m/s^2) t^2, so t=sqrt(2 1000/5)=20 seconds
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Answered by David R. • Physics tutor
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Describe and explain how social, economic and cultural factors can affect birth rates

Social factors can have a considerable effect on birth rates. Education levels greatly effect birth rates, educated woman are much more likely to be career mind and less intent on having large numbers of chi...
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Answered by Alex B. • Geography tutor
8789 Views

Explain how changes in prices allocate scarce resources in a market economy [12 marks]

The concept of 'scarce resources' refers to the basic economic theory that the market will consistently have insufficient resources to fulfill all of society's wants and needs. The price of a product in the ...
LK
Answered by Laura K. • Economics tutor
14254 Views

What organelles can be found in a plant cell but not an animal cell?

Only plant cells have a cell wall, vacuole, chloroplasts. Both plant and animal cells have a cytoplasm, cell membrane, mitochondria, nucleus, ribosomes and chromosomes.
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Answered by Fae R. • Biology tutor
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