Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is   In how many years will there be 92% of the isotope left?

A. 251 years
B. 800 years
C. 417 years
D. 400 years


Answer: C

Mathematics

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Write the given iterated integral as an iterated integral with the order of integration interchanged.

A.
B.
C.
D.

Mathematics

Consider the functions f and g as shown in the graph. Answer the question.What is the domain of f ? g?

A. { -3 ? x ? 4}
B. { -3 ? x ? 3}
C. { -1 ? x ? 4}
D. { -1 ? x ? 3}

Mathematics

Perform the division. Write the answer with positive exponents.

A. 3x3 + 25x11 - 40x9 + 25x7 + 7x6
B. 15x12 + 5x2 - 8 +  + 
C. 3x3 + 5x2 - 8
D. 3x3 + 5x2 - 8 +  + 

Mathematics

Provide the proper response.What is wrong with the statement "The line has no slope."?

What will be an ideal response?

Mathematics