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solve 4(x)^2 -19x - 5 =0

The purpose of this question is find values of x when y = 0 in the graph (ie when the curve crosses the x axis) There are 2 steps for this: 1) factorise the quadratics equation (2) solve for x

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Answered by Arslan G. Maths tutor
3025 Views

Explain Mitosis and Meiosis

Mitosis is the replication of a cells chromosomes so that two daughter cells can be produced with the same number of chromosomes as the parent cell.Meiosis has two processes, Meiosis 1 which is almost ide...

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Answered by Shannon H. Biology tutor
2302 Views

A mass of 2.5kg is raised by a height of 8m in 36 seconds using an electronic motor. Calculate the power of the motor.

Power = Work / Time. Work = mgh = 2.59.818 = 196.2 J. Power = 196.2 (J) / 36 (Seconds) = 5.45 W.

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Answered by Michael V. Physics tutor
1294 Views

Solve the following quadratic equation x^(2)+7x+12

(x+a)(x+b) = 0The two numbers must have a product of 12 and a sum of 7.3*4 = 12 AND 3+4=7Therefore(x+3)(x+4) = 0Therefore x+3 = 0 --> x = -3OR x+4 = 0 --> x = -4

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Answered by Michael V. Maths tutor
2518 Views

How do I rewrite algebraic fractions as a single fraction?

The first step to writing an expression with more than one fraction as a single fraction is to find their lowest common denominator. For example, in a question with two fractions where the denominators ar...

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Answered by David O. Maths tutor
12439 Views

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