Solve the problem.A small airplane is thought to have crashed in the triangular region formed by three islands. Using the measurements on the diagram, find the area of the triangle. Round to the nearest square mile.
A. The area of the triangle is 703,590 square miles.
B. The area of the triangle is 175,898 square miles.
C. The area of the triangle is 117,265 square miles.
D. The area of the triangle is 351,795 square miles.
Answer: B
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Write the fraction as a whole or mixed number.
A. 4
B. 6
C. 5
D. 5
Solve the problem.A manufacturer has found that the daily demand for a certain item is 
, where p is the price of the item in dollars. The daily supply is 
. At what price does supply equal demand? Round your answer to the nearest cent.
A. $8.62 B. $13.48 C. $28.46 D. $107.85
Decide whether the argument is valid or invalid, and give the form (of valid or invalid argument) that applies.If you eat well, you will be well.
If you eat well, you will be happy.
A. Invalid; fallacy of the inverse B. Invalid; fallacy of the converse C. Valid; modus tollens D. Valid; reasoning by transitivity
Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = -7
A. Continuous B. Not continuous