Find the exact solutions to the quadratic equation, using a method of your choice.4x2 - 11x - 3 = 0

A. -4, 3
B. - , 3
C. - , 4
D. , - 


Answer: B

Mathematics

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Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.x - y + 2z= 64x + z= 1x + 5y + z=-19

A. {(1, -4, 0)} B. {(1, 0, -4)} C. {(0, -4, 1)} D. {(0, 1, -4)}

Mathematics

Graph the hyperbola.25x2 = 9y2 + 225

A.

B.

C.

D.

Mathematics

Find the altitude of the isosceles triangle shown below if  and  . Round your answer to two decimal places.

A. 5.12 centimeters B. 6.25 centimeters C. 3.13 centimeters D. 2.46 centimeters E. 1.38 centimeters

Mathematics

Find the mean and standard deviation of the specified probability density function.f(x) =  for [6, 13]

A. ? = 3.45, ? = 2.02 B. ? = 9.50, ? = 2.02 C. ? = 9.50, ? = 1.73 D. ? = 3.50, ? = 2.02

Mathematics