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solve the system by subtitiution...

solve the system by subtitiution method 1.x^2+y^2=148 x-y=10 2.x-y=1 x^2-xy-y^2=-19 3.solve the system by addition method 2x^2-4y^2=-8 5x^2+3y^2=32 4.solve the system x^2+(y+8)^2=81 x^2-9y=153 5.difference between the squares of two numbers is 11.three times the square of the first number increased by the square of the second number is XXXXX the numbers. 6.a planet follows an elliptial path describes by 16x^2+4y^2=64. A comet follows the parabolic path y=x^2-4.where might the comet intersect the orbiting planet? 7.Find the length and width of a rectangle whose perimeter is 32 and whose area is 60 square feet. 9.write the augement matrix for the system of equations. x-y+12z=8 y-9z=-7 z=3 10.solve the system of equations to. 3a-b-5c=10 2a-b+5c=-9 a+2b-3c=-1 find the quadratic function f(x)=ax^2+bx+c for whih f(1)=3,f(-3)=-25, and F(3)=-31 what is the function? F(X)=

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