At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) such that x2 + y2 ? 36
B. All (x, y, z) such that x2 + y2 ? 6
C. All (x, y, z) such that x2 + y2 ? 0
D. All (x, y, z)
Answer: B
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Provide an appropriate response.A toxic radioactive substance with a density of 2 milligrams per square centimeter is detected in the ventilating ducts of a nuclear processing building that was used 47 years ago. If the half-life of the substance is 20 years, what was the density of the substance when it was deposited 47 years ago?
A. 25.49 mg/cm2 B. 0.39 mg/cm2 C. 2.69 mg/cm2 D. 10.2 mg/cm2
Solve the equation.12c3 + 29c2 + 15c = 0
A. 0
B. 
, - 
C. - 
, - 
, 0
D. - 1, - 
First, round the mixed numbers to the nearest whole number and estimate the answer. Then find the exact answer and write it in simplest form.2
÷ 1
A. 2
B. 1
C. 1
D. 1
Graph the equation by plotting points.y = -5x
A. 
B. 
C. 
D. 