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Why will a plant wilt if it is not watered?

When a plant is watered, water moves into the plant by osmosis (the diffusion of water), this means that water moves into the cells causing them to become turgid. When the plant is not being watered, water m...
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Answered by Isabelle H. • Biology tutor
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What is Le Chatelier's principle and why is it important?

Le Chatelier's principle states, that when a system that is in equilibrium is subject to a change of concentration, volume, pressure or temperature, the equilibrium will shift to counteract this change. This...
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find the stationary point of the curve for the equation y=x^2 + 3x + 4

dy/dx = 2x +32x + 3 = 0x= 3/2(3/2) 2 + 3(3/2) + 4 = 2.25 + 4.5 + 4 = 10.75
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A straight line passes through the point (0, 6) and is perpendicular to y = 4x - 5. Find the equation of this line, giving your answer in the form y = mx + c .

perpendicular so the gradient is -1/4 y= -1/4x +CSub in the coordinate (0,6) 6 = -1/4 (0) +C C=6y=-1/4x +6
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Answered by Maria S. • Maths tutor
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factorise x^2 - 8x -65

Two numbers add/ subtract to make -8Two numbers multiply to make -65. These are 1 and 65 as well as 5 and 13Seeing as 1 and 65 cant add or subtract to make -8 the numbers we'll use are 5 and 13. These also s...
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Answered by Kavi C. • Maths tutor
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