A system of nonlinear equations is given. Sketch the graph of the equation of the system and then determine the number of real solutions to the system. Do not solve the system.x2 + y2 = 25xy = 1
A. Two
B. Four
C. Two
D. Four
Answer: B
Mathematics
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Express the given quantity in terms of sin x or cos x.cos (6? + x)
A. -cos x B. cos x - sin x C. cos x D. -sin x
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 8x - 6y - 3z = 147w + 6x - 9y - 3z = -78w - 8x + 7y + 4z = -28-6w - 3x + 8y + 8z = 7
A. (-1, 5, 4, -2) B. (1, 5, 4, 2) C. (-1, 4, -5, 2) D. No solution
Mathematics
Solve the equation by changing it to exponential form.log x = - 2
A. x = 
B. x = 
C. x = -20
D. x = 20
Mathematics
Solve the literal equation for the specified variable.5x + 3y = 4 for y
A. y = 
B. y = -15x + 12
C. y = 
D. y = 
Mathematics