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h^2=25. solve this quadratic equation to find h.

h 2 = 25So firstly, we must square root each side of the equation.(square root) h 2 = (square root)25.so... h= (square root)25.h=5. or h=-5.
HS
Answered by Helen S. • Maths tutor
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Which of these events was the greater success for Hitler: The remilitarisation of the Rhineland, 1936 OR The Munich agreement, 1938 (8 marks

The remilitarisation of the Rhineland, where Hitler broke the Treaty of Versailles’ ban on keeping German military forces in the region bordering France, was a success because Hitler successfully achieved hi...
JW
Answered by Joseph W. • History tutor
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(2x-5)(3x+2)(x+7) - Expand the brackets.

(6x^2+4x-15x-10)(x+7)(6x^2 -11x-10)(x+7)= 6x^3-11x^2-10x+42x^2-77x-70)=6x^3+31x^2-87x-70
GA
Answered by Gloria A. • Maths tutor
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What is the determinant of a 2 by 2 matrix?

Let A by any 2 by 2 matrix and the top left, top right, bottom left and bottom right entries be a, b, c and d respectively. The determinant for matrix A would be ad-bc.
LG
Answered by Lin G. • Maths tutor
4173 Views

Person A, weighing 35 kg, is sitting 10m away from a seesaw pivot. Person B, weighing 50 kg, it sitting at the other end, at a distance d. Calculate d, in order for the seesaw not to topple over. (g=10m/s^2)

Force@A: F A = m A x g = 35 x 10 = 350NAnticlockwise moment: M A = F A x d A = 350 x 10 = 3500NmForce @B: F B =m b x g = 50 x 10 = 500NClockwise moment: M c = F B x d B For the seesaw to be in equilibrium, M...
AA
Answered by Antonia A. • Physics tutor
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