Question #56019
8: If you save one penny on January 1, two pennies on January 2, three pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars at the end of that one year? Express your answer as a decimal.
Answer: _____
9: If you were to solve the following system of equations by using a matrix, which of the following would be your coefficient matrix?
5x – y = 18
3x + 8y =15
A: [5 18]
[3 15]
B: [5 -1 18]
[3 8 15]
C: [5 -1]
[3 8]
D: [5 3]
[-1 8]
10: It is possible for a system of linear equations to have an infinite number of solutions
A: True
B: False
Answer: _____
9: If you were to solve the following system of equations by using a matrix, which of the following would be your coefficient matrix?
5x – y = 18
3x + 8y =15
A: [5 18]
[3 15]
B: [5 -1 18]
[3 8 15]
C: [5 -1]
[3 8]
D: [5 3]
[-1 8]
10: It is possible for a system of linear equations to have an infinite number of solutions
A: True
B: False
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If you save three pennies on January 1, six pennies on January 2, nine pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that one year? Express your answer as a decimal.