Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 10 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the volume of the balloon in terms of r. Find (V ? r)(t).
A. (V ? r)(t) = 
B. (V ? r)(t) = 
C. (V ? r)(t) = 
D. (V ? r)(t) = 
Answer: A
Mathematics
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Use a calculator to find an approximate solution to the equation. Round your answer to the nearest thousandth.6n2 = -12n - 5
A. {-0.296, -0.704} B. {-1.592, -2.408} C. {-0.592, -1.408} D. {0.354, -2.354}
Mathematics
Plot the point whose polar coordinates are given.
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.A student insists on finding a common denominator by always multiplying the denominators of the expressions being added or subtracted. How could the student's approach be improved? Explain.
What will be an ideal response?
Mathematics
Find all values of x satisfying the given conditions.y1 = 
+ 8, y2 = 6
, and y1 = y2
A. 4, 2
B. 
, 14
C. 
, 
D. - 
, - 
Mathematics