Suppose that the oxygen level P (for purity) in a body of water t months after an oil spill is given by . Find how long it will be before the oxygen level reaches its minimum.
??

A.
B.
C.
D.
E. none of the above


Answer: B

Mathematics

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The bar graph below shows the number of students by major in the College of Arts and Sciences. Answer the question.What is the ratio of English and science majors to math and history majors?

A. 11 to 10 B. 10 to 11 C. 23 to 20 D. 3 to 4

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Find the area of the triangle. Approximate values to the nearest tenth when appropriate.Legs with lengths 9 ft and 9 ft

A.  ft2
B. 162 ft2
C. 18 ft
D. 81 ft2

Mathematics

Complete the table of values for the given equation.y = -5

A. 0; 0; 0 B. 0; 2; 4 C. 3; 3; 3 D. -5; -5; -5

Mathematics

Evaluate the expression.

A) x B) -1 C) -x D) 6 E) 1

Mathematics