Solve the problem.A person plans to invest $10,000 in a CD at 6% annual interest and in a mutual fund that has a 3-year average annual interest of 11%. Let x and y represent the money (in dollars) invested in the CD and the mutual fund, respectively. How much money should be invested in each account to earn a total of $900 in one year?
A. $5000 invested at 6%; $5000 invested at 11%
B. $6000 invested at 6%; $4000 invested at 11%
C. $4000 invested at 6%; $6000 invested at 11%
D. $3000 invested at 6%; $7000 invested at 11%
Answer: C
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Determine whether the graph is a tree.In order to study the way that people react to strangers, a psychologist conducts an interesting experiment. Without any instructions as to the nature of the experiment, one hundred strangers are led into a large room in which refreshments are being served and music is playing. The psychologist draws a graph in which each vertex represents a subject and she draws an edge between pairs if the pair engages in conversation and if this conversation is the first conversation for at least one member of the pair. Must the resulting graph be a tree?
A. No B. Yes
Use Fleury's algorithm to find an Euler circuit for the graph.
What will be an ideal response?
Solve the problem. Give the answer as a simplified radical expression.Find the perimeter of a triangle with sides measuring 5
, 5
, and 5
meters.
A. 50 + 25
meters
B. 75
meters
C. 50
+ 25 meters
D. 50
+ 25
meters
Plot the given points and sketch the line that passes through them.(1, 2) and (-1, -2)
A. 
B. 
C. 
D. 