Simplify. 

A.
B.
C.
D. 1


Answer: C

Mathematics

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Solve the problem.A certain radioactive isotope decays at a rate of 0.1% annually. Determine the half-life of this isotope, to the nearest year.

A. 500 yr B. 693 yr C. 301 yr D. 7 yr

Mathematics

Perform the operation and simplify, or solve the equation for the variable. + 

A.
B.
C.
D.

Mathematics

Solve the exponential equation. For irrational solutions, round to four decimal places.2x - 1 = 13

A. {2.7004} B. {3.9069} C. {7.5000} D. {4.7004}

Mathematics

Simplify. - 

A.
B.
C.
D.

Mathematics