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x is an integer such that ‎1≤x≤9, Prove that 0.(0x)recurring=x/99

r=0.0 . x . r=0.0x0x0x0x.... 100r=x.0x0x0x (1) 10,000r=x0x.0x0x0x (2) (2) - (1): 9,900r=x00 r=x00/9,990 r=x/99
EE
Answered by Ellie E. • Maths tutor
14063 Views

Explain what happens when there is a mutation in a gene whereby 2 bases are deleted ?

As there are 2 bases which are deleted a frameshift will occur at the site of the mutation. This means that all other amino acids coded for by the genes after the point of mutation will be different. This is...
KT
Answered by Kevin T. • Biology tutor
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Can you explain the difference between ecological feminism and ecological socialism? (ideologies)

The key theme of Ecological Feminism is that women are closer to nature than men are, whereas ecological anarchists believe that all humans have been prevented, by the state, to become close to nature. Ecolo...
KJ
Answered by Kate J. • Politics tutor
2524 Views

Qué te gusta hacer en tu tiempo libre?

Give a good introdution, repeating the question to demonstate that you understand what is being asked: Afuera del instituto, me gusta pasar mi tiempo libre haciendo deporte y los sabados, suelo salgo con mis...
CM
Answered by Claire M. • Spanish tutor
4058 Views

Which renewable energy methods are the best?

This depends on what "best" means, but generally this boils down to location. As an example, consider geothermal energy. This is derived from heat sources inside the Earth. Some places, such as Ice...
CW
Answered by Callum W. • Physics tutor
2270 Views