Verify that the matrix is invertible and find its inverse.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 
Answer: A
Mathematics
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Find a parametrization for the line segment beginning at P1 and ending at P2.P1(0, 0, 0) and P2(-3, -2, 4)
A. x = 3t, y = 2t, z = -4t B. x = -3t - 3, y = -2t - 2, z = 4t + 4 C. x = -3t + 3, y = -2t + 2, z = 4t - 4 D. x = -3t, y = -2t, z = 4t
Mathematics
Write the fraction as a decimal.
A. 
B. 
C. 
D. 
Mathematics
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 0.4 B. x = 6.88 C. x = 5.6 D. x = 31.5
Mathematics
Subtract.(0.2x4 - 0.6x2 + 0.9) - (1.7x4 + 1.2x - 2.2)
A. -1.5x4 - 0.6x2 - 1.2x + 3.1 B. -1.5x4 - 0.6x2 - 1.2x - 1.3 C. -1.5x4 - 0.6x2 + 1.2x + 3.1 D. -1.5x4 - 0.9x2 - 1.3
Mathematics