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4, 7, 9, 10, 10 mean, median, mode, range

mean: add 4,7,9,10 and 10.This gives us 40divide 40 by 5, as we have 5 numbers.40/5= 8therefore mean =8
median... if we put all the numbers in an order.. middle number- 9
mode- MOde- MOst common...

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Answered by Sagana S. Maths tutor
1388 Views

2/(y+4) + 3(y-2)

So the question asks us to add together; 2 divided by y plus 4, to 3 divided by y minus 2.As there are no common denominators (bottom half of the fraction)We will therefore have to multiple the two denomi...

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Answered by Sagana S. Maths tutor
2429 Views

express x^2-4x+9 in the form (x-q)^2+y

divide the coefficient of the x term by 2-4/2=-2this is the value of the term, q.to find the term, y, simply square the value of q, and subtract it from the number term, which is in this case, 9(-2)^2=4. ...

HC
Answered by Hugo C. Maths tutor
5437 Views

4. The curve C has equation 4x^2 – y3 – 4xy + 2y = 0. P has coordinates (–2, 4) lies on C. (a) Find the exact value of d d y x at the point P. (6) The normal to C at P meets the y-axis at the point A. (b) Find the y coordinate of A

Differentiate Implicitly with respect to x- ( do it term by term, terms with only x's diff normally, terms containing a Y should be differentiated following the standard pattern but then multiplied by dy/...

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Answered by Hamish P. Maths tutor
5822 Views

Express x^2+8x+15 in the form (x+a)^2-b

Completing the Square is required to solve this equation. First, identify A,B, and C of the quadratic equation: A=1, B=8, C=15. Halve B to obtain a: B/2 = 8/2 = 4 so a

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Answered by Mahfuza P. Maths tutor
29775 Views

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