Factor completely.12x4 - 25x3 + 12x2
A. x(3x + 4)(4x + 3)
B. (12x2 + 4)(x2 + 3)
C. x2(12x - 1)(x - 12)
D. x2(3x - 4)(4x - 3)
Answer: D
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Solve the equation.x + 14 = 6
A. {-20} B. {-8} C. {8} D. {20}
Solve the problem.The Richter scale magnitude R of an earthquake is based on the features of the associated seismic wave and is measured by R = log (a/T) + B, where a is the amplitude in ?m (micrometers), T is the period in seconds, and B accounts for the weakening of the seismic wave due to the distance from the epicenter. Compute the earthquake magnitude R when a = 320, T = 5, and B = 3.5. (Round to the nearest ten-thousandth.)
A. 1.8062 B. 8.8062 C. 1.6938 D. 5.3062
Write the equation in slope-intercept form.6x = 4y + 12
A. y = - 
x + 3
B. y = 
x + 3
C. y = 
x - 3
D. y = - 
x - 3
Subtract.14 - 7
A. 6 B. 7 C. 8 D. 9