Find the solution or solutions, if any exist, to the system.
A. infinitely many solutions of the form x = 3z - 2, y = -4z + 4, z = z, w = 0
B. x = -2, y = 4, z = 0, w = 0
C. infinitely many solutions of the form x = - 3z - 2, y = 4z + 4, z = 0, w = w
D. inconsistent system, no solution
Answer: A
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Solve the problem.At time t, the position of a body moving along the s-axis is 
m. Find the body's acceleration each time the velocity is zero.
A. a(2) = -18 m/sec2, a(8) = 18 m/sec2 B. a(2) = 0 m/sec2, a(8) = 0 m/sec2 C. a(2) = 18 m/sec2, a(8) = -18 m/sec2 D. a(4) = 24 m/sec2, a(16) = 4 m/sec2
Multiply or divide using a calculator and round as indicated.(-88,000) ÷ (9.05) × 50 (hundred thousands)
A. -400,000 B. -500,000 C. -490,000 D. -480,000
Provide an appropriate response.Perform the multiplication: 3x3(7x2 + x - 3)
A. 21x5 + 3x4 - 3 B. 21x65 + 3x3 - 9x C. 21x5 + 3x4 - 9x3 D. 10x5 + 4x4
Evaluate the expression using the given values.r - 7u - 
(s - 6t); r = -2.5, s = 5, t = -5, u = 4.5
A. -36 B. - 29 C. -27 D. -41