Answer true or false.A system of two linear equations in two variables can have exactly one solution.
A. False
B. True
Answer: B
Mathematics
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Find an equation for the sphere with the given center and radius.Center (0, -9, -6), radius = 4
A. x2 + y2 + 4z2 + 18y + 12z = -101 B. x2 + y2 + z2 + 18y - 12z = -101 C. x2 + y2 + z2 + 18y + 12z = -101 D. x2 + y2 + 4z2 + 18y - 12z = -101
Mathematics
Find the foci of the ellipse.16x2 - 96x + 25y2 - 150y - 31 = 0
A. (-1, 3), (7, 3) B. (0, 3), (6, 3) C. (3, -1), (3, 7) D. (-2, 3), (8, 3)
Mathematics
Solve the equation.0.1(30) + 0.5x = 0.3(30 + x)
A. 40 B. 15 C. 30 D. 20
Mathematics
Subtract.795
A. 828 B. 662 C. 756 D. 762
Mathematics