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How many solutions does a quadratic equation have?

A quadratic equation "ax 2 +bx+c=0" can have 0, 1 or 2 solution. This depends on the discriminant which is (b 2 - 4ac) If the discriminant is positive, then there are 2 solutions If it equals 0, th...
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Answered by Phuong D. • Maths tutor
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How do you solve a simultaneous equation?

Example question: Solving Simultaneous Equations Equation 1: 6x + 2y = 2 Equation 2: 5x - 7y = 6. Find x and y. 1) Check is if it is possible to solve. Here we have 2 unknowns, x and y, and 2 equations, ther...
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Answered by Toby F. • Maths tutor
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How does light intensity control plant seed germination?

Plants contain a type of pigment called phytochrome, which are sensitive to light. Phytochrome exists in two forms: phytochrome red and phytochrome far-red. When sunlight (which contains red light) shines on...
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Answered by Daniella G. • Biology tutor
9699 Views

How can the BCG Matrix be applied to a high street retail business?

The Boston Consulting Group Matrix is a business tool which can be used to analyses a company with regard to their particular market share vs their market growth . When a business has: Low Market Share and L...
BT
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Describe the events that take place in a neurone which produce an action potential

The action potential begins when the stimulus exceeds the threshold. - The voltage gated sodium ion channels open. - Sodium ions diffuse into the axon down an electrochemical gradient. - Positive feedback oc...
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Answered by Lauren G. • Biology tutor
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