Check to see if the given number is a solution for the equation.x2 - 9 = 12x; check x = 9
A. 9 is not a solution.
B. 9 is a solution.
Answer: A
Mathematics
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Sides in pair of figures are proportional. Find missing length(s).
Give your answers as mixed numbers if appropriate.
A. x = 11
, y = 10
, z = 5
B. x = 11
, y = 13
, z = 5
C. x = 11
, y = 13
, z = 5
D. x = 8, y = 9, z = 6
Mathematics
Find y ".y = 5 sin(2x + 8)
A. - 20 cos(2x + 8) B. - 10 sin(2x + 8) C. - 20 sin(2x + 8) D. 10 cos(2x + 8)
Mathematics
Find an equation for the parabola described.Focus at (0, -3); directrix the line x = -2
A. (x + 3)2 = 4(y + 1) B. (y + 3)2 = 4(x + 1) C. (x + 1)2 = 4(y + 3) D. (y + 3)2 = -4(x + 1)
Mathematics
Solve the problem.Find the moment of inertia about the y-axis of a thin infinite region in the first quadrant bounded by the coordinate axes and the curve 
if 
.
A. 
B. 
C. 
D. 
Mathematics