In calm waters, the oil spilling from the ruptured hull of a grounded tanker spreads in all directions. Assuming that the polluted area is circular, determine how fast the area is increasing when the radius of the circle is 20 ft and is increasing at the rate of 1/6 ft/sec. Round to the nearest tenth if necessary.

What will be an ideal response?


Mathematics

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Simplify the expression. Assume all variables represent positive real numbers.( + 3)( + 5)

A.  + 5 + 3 + 15
B.  + 8 + 15
C. 9 + 15
D.  + 15

Mathematics

Classify the polynomial as constant, linear, quadratic, cubic, or quartic, and determine the leading term, the leading coefficient, and the degree of the polynomial.g(x) = x3 - 10x + 7

A. Quadratic; x2; 2
B. Linear; -10x; -10; 1
C. Linear; 7; 7; 1
D. Cubic; x3; 3

Mathematics

Use translations of graphs to help sketch a graph of f.f(x) =  + 3

A.

B.

C.

D.

Mathematics

Simplify. Leave answer in exponential form with positive exponents only. Assume that all variables represent nonzero quantities.-2z-3

A.
B. - 
C. - 
D. 2z3

Mathematics