Use the square root property to solve the quadratic equation.5x2 - 4x - 9 = 0
A. 
, -1
B. 
, -1
C. 
, 1
D. 
, 0
Answer: B
Mathematics
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Expand.(3x2 - y)5
A. 243x10 - 405x8y + 270x6y2 - 90x4y3 + 15x2y4 - y5 B. 243x10 + 405x8y + 270x6y2 + 90x4y3 + 15x2y4 + y5 C. 243x10 + 405x8y - 270x6y2 + 90x4y3 - 15x2y4 + y5 D. 243x10 - 405x8y - 270x6y2 - 90x4y3 - 15x2y4 - y5
Mathematics
Determine if the given solution is correct. If it is not, find the solution.Is -16 the solution to -x = 16
A. no; x = 0 B. no; x = -1 C. no; x = 16 D. yes
Mathematics
Evaluate the improper integral.
A. 
B. 
C. 
D. 
Mathematics
Determine the real solutions to the system of nonlinear equations.6x2 + 8y2 = 128y = x + 4
A. (0, -4), 
B. (0, 4), 
C. (0, -4), 
D. (0, 4), 
Mathematics