Factor completely. If the polynomial is prime, state so.512x3y6 - 72x6y3
A. 8x3y3(4y + 3x)(16y2 - 12xy + 9x2)
B. 8x3y3(4y - 3x)(16y2 + 12xy + 9x2)
C. 8(4xy2 + 3x2y)(16x2y4 - 12x3y3 + 9x4y2)
D. 8x3y3(64y3 - 9x3)
Answer: D
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For the initial value problem, compute the first two approximations u1 and u2 given by Euler's method using the given time step.y'(t) = -y, y(0) = -5; ?t = 0.5
A. u1 = -5; u2 = -2.5 B. u1 = -2.5; u2 = -1.25 C. u1 = -2.5; u2 = -2.5 D. u1 = 0; u2 = -2.25
Solve the problem.Stevie bought a stereo for $220 and put it on sale at his store at a 65% markup rate. What was the retail price of the stereo?
A. $263.00 B. $440.00 C. $320.00 D. $363.00
Solve the equation by completing the square.49g2 + 42g - 40 = 0
A. 
, - 
B. - 
, - 
C. 
, - 
D. - 
, 
Solve the problem.Vehicles in accidents often leave skid marks. To determine how fast a vehicle was traveling, officials often use a test vehicle to compare skid marks on the same section of road. If a vehicle involved in a crash left skid marks that are D feet long and a test vehicle traveling at v miles per hour leaves skid marks that are d feet long, then the speed of the vehicle in the crash is given by 
Determine V if v = 50 miles per hour, D = 289 feet, and d = 100 feet.
A. 80 miles per hour B. 85 miles per hour C. 170 miles per hour D. 95 miles per hour