Solve the equation.4(y + 5) = 5(y - 6)

A. {-10}
B. {-50}
C. {10}
D. {50}


Answer: D

Mathematics

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Find the slope and y-intercept for the equation.x + 8y = 1

A. slope: 1, y-intercept: 1
B. slope: - , y-intercept: 
C. slope: , y-intercept: 
D. slope: -8, y-intercept: 8

Mathematics

Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 

A. Domain: all points in the xy-plane; range: all real numbers; level curves: parabolas 
B. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: parabolas 
C. Domain: all points in the xy-plane except y = 0; range: real numbers z ? 0 ; level curves: parabolas 
D. Domain: all points in the xy-plane except y = 0; range: all real numbers; level curves: parabolas 

Mathematics

Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = -x2 + 9x - 20

A. x-intercepts (4, 0) and (5, 0) B. x-intercepts (4, 0) and (-5, 0) C. x-intercepts (-4, 0) and (-5, 0) D. No x-intercepts

Mathematics

The equation of motion is given for a particle, where s is in meters and t is in seconds. Find the acceleration after 5 seconds.

Mathematics