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Simplify 125 ^ -2/3

= (1/125) ^ 2/3 = (1/5) ^ 2 = 1/25 To find a number to a negative power, you invert it (flip it so that 125 becomes 1/125) To find (1/125) ^ 2/3, find the cube root of 1/125 (=1/5) and then square it (=1/25)
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Answered by Ewen R. • Maths tutor
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How do I structure an essay paragraph?

It's really important that every paragraph in an essay adds to and is informed by the overall argument of your essay. One paragraph should contain one overarching point: it should begin by describing the poi...
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Answered by Francesca D. • English tutor
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What is the electrical conducting pathway through the heart?

The heart is myogenic meaning that impulses (action potentials) are stimulated from the pacemaker cells of the heart. These action potentials are initiated from the sinoatrial node (SAN) which are a cluster ...
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Answered by Mursaleen C. • Biology tutor
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Prove that the composite function fg(2)=-26 where f(x)=3x+1 and g(x)=1-5x

Here, f(x) and g(x) are functions of x, whose output depends on the value of x. fg(2) means fg(x) where x=2. Firstly, calculate g(2) and use this answer as the new value of x for f(x). g(2)=1-5(2)=-9. f(-9)=...
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Answered by Alisha L. • Maths tutor
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Describe the process of protein synthesis from a gene encoding that protein

During Transcription, DNA is initially un-coiled by the enzyme DNA helicase to reveal 2x single nucleotide chains. These are read by RNA polymerase from the 3' to 5' end of the DNA. mRNA is produced here, wh...
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