Solve the equation or inequality graphically. Express solutions or endpoints of intervals rounded to the nearest hundredth, if necessary.
+ 
? -x - 
(Provide exact answer.)
A. (-?, -
] ? [
, ?)
B. (-?, ?)
C. ?
D. (-?, -
] ? [
, ?)
Answer: B
Mathematics
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Find the equation of the tangent plane to the given surface at the indicated point.2xyz + 2x2y - z3 = 0, (1, -3, 7)
A. -54(x - 1) + 16(y + 3) = -153(z - 7) B. -54(x + 1) + 16(y - 3) - 153(z - 7) = 0 C. -54(x - 1) - 16(y + 3) - 153(z - 7) = 0 D. -54(x - 1) + 16(y + 3) - 153(z - 7) = 0
Mathematics
Solve the problem.A satellite dish has a parabolic cross section and is 12 ft deep. The focus is 4 ft from the vertex. Find the width of the satellite dish at the opening. Round your answer to the nearest foot.
A. 32 ft B. 28 ft C. 30 ft D. 36 ft
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Perform the matrix multiplication.
A. 
B. 
C. 
D. 
Mathematics
Determine convergence or divergence of the alternating series.
A. Converges B. Diverges
Mathematics