Simplify.
7
A. 
B. 
C. 
D. 
Answer: A
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Find the quotient and write in rectangular form. First convert the numerator and denominator to trigonometric form.
A. - 
- 
i
B. - 
+ - 
i
C. - 
- 
i
D. - 
- 
i
Solve the problem.In the formula A(t) = A0ekt, A is the amount of radioactive material remaining from an initial amount A0 at a given time t, and k is a negative constant determined by the nature of the material. A certain radioactive isotope decays at a rate of 0.3% annually. Determine the half-life of this isotope, to the nearest year.
A. 100 yr B. 167 yr C. 2 yr D. 231 yr
Firms using the unrelated-diversified multiproduct strategy dominate the private sector in Latin American countries, Korea, China, and India.
Answer the following statement true (T) or false (F)
Decide whether or not the function is continuous in the indicated x-interval.-3 to 2
A. Not continuous B. Continuous