Determine if the infinite geometric series converges or diverges. If the series converges, find its sum.4 + 
+ 
+ 
+ . . .
A. converges, 5
B. converges, 
C. diverges
D. converges, 
Answer: A
Mathematics
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Find the expected value of the random variable.The random variable X is the number of people who have a college degree in a randomly selected group of four adults from a particular town. Its probability distribution is given in the table.
A. 1.20 B. 1.44 C. 2.00 D. 1.10
Mathematics
Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 14 min B. 15 min C. 34 min D. 24 min
Mathematics
Use identities to simplify the expression. Do not use a calculator.
A. 
B. 
C. 
D. 
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics