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complete the square by rewriting x^2+6x-15 in the form (x+p)^2-q

To complete the square the first thing you must do is divide the coefficient (number in front) x by 2 to give (x+3)^2We must then expand out (x+3)^2 which can be done by writing it as (x+3)(x+3) then usin...

Answered by Lamees A. Maths tutor
3595 Views

Translate: 'Abydeni legatos ad regem de condicionibus tradendae urbis miserunt.' (OCR H443/01 sample)

Step 1 - understand each wordAbydeni - glossed as masculine plural, 2nd decl, and therefore must be nominative, subject of sentencelegatos - accusative plural of legatus -i m. = ambassador/commande...

Answered by Tom B. Latin tutor
1411 Views

Particle A mass 0.4kg and B 0.3kg. They move in opposite direction and collide. Before collision, A had speed 6m/s and B had 2m/s. After collision B had 3m/s and moved in opposite direction. Find speed of A after collision with direction and Impulse on B.

-> m1u1 + m2u2 = m1v1 + m2v22.4 - 0.6 = 0.4v1 + 0.90.9 = 0.4 v1v1 = 2.25m/s (direction unchanged)-> I = mv - mu= (0.3 x 3) - (0.3 x -2)= 1.5 Ns

Answered by Samay S. Maths tutor
2962 Views

Draw the atomic structure of Magnesium

Atoms are made up of protons and neutrons in the nucleus, and electrons surrounding the nucleus in shells. Protons have a positive charge and electrons have a negative charge, so for an atom to have a neu...

Answered by Isabel A. Chemistry tutor
4044 Views

Explain why transition metal complexes are coloured?

In a complex transition metal ion, the electric field produced by the lone pairs on ligands when they interact with the central metal ion causes the d orbitals to split into two sub levels. As the dx...

Answered by Chemistry tutor
2553 Views

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