what is the solution to the system

What are the real solutions of the system y 2 - x 2 = 38 and y 2 = 21 x ? => (2, 4 2 ), (- 2, - 4 2 ), (19, 3 9 9 ) and (19, - 3 9 9 ) or (2, 4 2 ), (2, - 4 2 ), (19, 3 9 9 ) and (19, - 3 9 9 ) or (- 2, 4 2 ), (2, - 4 2 ), (19, 3 9 9 ) and (- 19, - 3 9 9 ) or (2, 4 2 )..

What is the number of solutions of the system of equations x 2 + y 2 = 9 , y = x 2 ? => 2 or 3 or 1 or 0..

What is the number of real solutions of the system of equations y = x 2 - 1 , y = 1 - x ? => 3 or 4 or 1 or 2..

What is the number of real solutions of the system of equations, 4 x 2 - 9 y 2 = 36 , y 2 = x ? => 2 or 1 or 3 or 0..

What is the number of real solutions of the system of equations x 2 + ( y 2 4 ) =1, y = x ? => 4 or 2 or 1 or 3..

What is the number of real solutions of the system of equations ( x 2 9 ) + ( y 2 4 ) = 1 , y = x 2 - 2 ? => 1 or 2 or 3 or 4..

What is the number of real solutions of the system of equations ( x 2 4 ) +( y 2 9 ) = 1 , x 2 + y 2 = 25 4 ? => 4 or 2 or 1 or 3..

Heat absorbed by the system = 470 J or q = 470 J Work done by the system = 200 J or w = - 200 J According to first law of thermodynamics D E = q + w D E = 470 - 200 = 270 J 3. A gas absorbs 120 J of heat and expands against the external pressure of 1.10atm from a volume of 0...

Work of expansion, w = P D V D V = 2.0 - 0.5 =1.5L, P = 836 mm of Hg P D V = 1.10 x 1.5 = 1.650 L atm = 1.650 x 101.3 (1L atm = 101.3 J) = 167.1 J Since work is done by the system w = - 167.1 J Heat absorbed by the system = 120J or q = + 120J Now, D E = q + w = 120 J + (-167...

C 6 0 molecule is a symmetrical structure of fused-ring of aromatic system containing 20 hexagons and 12 pentagons of sp 2 hybridized C atoms. The structure bends around and closes to form a soccer ball shaped molecule. It is therefore, called buckyball or C 6 0 fullerene. The diame..