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Solve 0=X^2 +5x +4

0= (x + 4)(x + 1)

x= - 4

x= - 1

RW

Answered by Rebecca W. • Maths tutor

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how do you find intersections between two graphical functions?

A rectangle is made up of the equations; For the longer spans: 5x-12y+16 and 5y-4x+20; for the shorter spans: 2x-4y+4 and 3x-2y-12

a) You area told that y is proportional to x2 and that when y = 75, x = 5. Find a formula for y in terms of x. y = x b) Find the value of y when x = 3. c) Find the value of x when y = 1200.

Make y the subject of the formula: p = √x+y/5

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