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Find values of x for which 2x^2 < 5x + 12

Start by rearranging the inequality - make sure the sign next to the x 2 term is positive to make it easier: 2x 2 -5x - 12&lt; 0 Next step is to factorise this quadratic. To do this, remember that the genera...
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Answered by Sean B. • Maths tutor
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Write 0.185 as a percentage

Times by 100 0.185 X 100= 18.5%
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Answered by Emily P. • Maths tutor
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Show that 3/10 + 2/15= 13/30

First make the denominator the same 3/10 X3 2/15 X2 =9/30 + 4/30 =13/30
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Answered by Emily P. • Maths tutor
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Explain the nuclear model

The atom consists of three sub-atomic particles: Protons; Neutrons and electrons. Protons and neutrons are in the nucleus of the atom and the electrons occupy the electron shells around the nucleus. Electron...
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Answered by Emily P. • Chemistry tutor
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Describe and explain mitosis

Mitosis is the division (and multiplication) by body cells or somatic cells (cells that arent gametes.) Gametes- sperm and egg; undergo meiosis Somatic cells- body cells; undergo mitosis . Both the daughter ...
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Answered by Emily P. • Biology tutor
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