Perform the indicated operation and simplify.
? 
A. 
B. 
C. 
D. 
Answer: B
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Provide an appropriate response.Important news is said to diffuse through an adult population of fixed size L at a time rate proportional to the number of people who have not heard the news.Set up a differential equation for 
where N(t) is the number of people who have heard the news t days after it is reported. Write the solution to the differential equation. Find 
N(t).
What will be an ideal response?
Solve the problem.A curved bridge rises over a canyon. The two endpoints of the bridge are one mile apart horizontally. The bridge rises to a height of 350 feet above the horizontal. Approximately what is the walking distance along the bridge, in feet?
Fill in the blank(s) with the appropriate word(s).
Fill in the blank with one of the words or phrases listed below. 
By the 
property of equality, we may multiply or divide both sides of an equation by any nonzero number without changing the solution of the equation.
A. constant B. multiplication C. addition D. distributive
Provide an appropriate response.Change 
to an improper fraction.
A. 
B. 
C. 
D. 