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What is the nth term of the sequence 5, 7, 9, 11....

Difference between each number is +2Therefore the sequence is 2n + C When n = 1 the value is (2x1) + C = 2 + C = 5C = 36 nth term is 2n + 3 CHECK 3rd term should be (2x3) + 3 = 6 + 3 = 9 Which is correct
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Answered by Thomas L. • Maths tutor
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How do you know when a word is masculine or feminine?

All Spanish nouns are either masculine or feminine - remember nouns are all things, ideas, places, or people. You cannot predict the gender of a noun in English, for example the Spanish word for "dress&...
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Answered by Eleanor G. • Spanish tutor
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A pellet of mass 8.8 g embeds itself in a wooden block of 450 g which is suspended by a light in-extensible string. After the collision the block reaches a max height of 0.63 m. Calculate the initial velocity of the pellet.

Max Gravitational Potential energy of combined mass:GPE = m x g x h= ( 0.0088 kg + 0.450 kg ) x 9.81 ms^-2 x 0.63 m = 2.84 J Therefore Kinetic energy of the combined mass at the collision = 2.84 JKE = 1/2 x ...
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Answered by Thomas L. • Physics tutor
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Explain the reactions of CH3CH2Cl with the nucleophile NH3 and name the initial product formed.

Nucleophile- electron pair donor. If electron dense it's therefore attracted to a positive charge. A partial positive charge can be found on the C atom due to the electronegativity of chlorine. Therefore, CN...
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Answered by Libby M. • Chemistry tutor
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How to structure an essay style answer?

I would always suggest to follow the simple "PEEL" format. This is the most effective and efficient way to get your point across without loosing the examiners attention. It is all about making it e...
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