Ma 170 Final Exam Answers

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Pages 87
MA 170 Final Exam Answers
http://hwguiders.com/downloads/ma-170-final-exam-answers/

Points Awarded 100.00
Points Missed 0.00
Percentage 100%

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. Find all solutions whenever they exist.

1. A)
one and only one solution
1. B)
one and only one solution
1. C)
one and only one solution
1. D)
infinitely many solutions
1. E) no solution
Points Earned: 4.0/4.0


Solve the linear system of equations

1. A)
Unique solution:
1. B)
Unique solution:
1. C)
Infinitely many solutions:
1. D) No solution
Points Earned: 4.0/4.0


Find the simple interest on a $400 investment made for 5 years at an interest rate of 7%/year. What is the accumulated amount?
540. A) The simple interest is $140, the accumulated amount is $540.
B) The simple interest is $115, the accumulated amount is $515.
C) The simple interest is $120, the accumulated amount is $520.
D) The simple interest is $125, the accumulated amount is $555.
Points Earned: 4.0/4.0


Find the present value of $40,000 due in 4 years at the given rate of interest 8%/year compounded monthly.
948. A) The present value is $28,948.67.
B) The present value is $29,433.94.
C) The present value is $29,076.82.
D) The present value is $29,748.06.
Points Earned: 4.0/4.0


Solve the system of linear equations using the Gauss-Jordan elimination method.

1. A)
B)
C)
D)
E)
Points Earned: 4.0/4.0


The following breakdown of a total of 18,686 transportation fatalities that occured in 2007 was obtained from records compiled by the U.S. Department of Transportation (DOT).


What is the probability that a victim randomly selected from this list of transportation fatalities for 2007 died in a train or a plane accident? Round answer to two…...

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