The numbers of three types of bank accounts on January 1 at the Central Bank and its branches are represented by matrix A:
The number and types of accounts opened during the first quarter are represented by matrix B, and the number and types
of accounts closed during the same period are represented by matrix C. Thus,
Matrix D will represent the number of each type of account at the end of the first quarter at each location.
Because a new manufacturing plant is opening in the immediate area, it is anticipated that there will be a 10% increase in
the number of accounts at each location during the second quarter. Write a matrix E to reflect this anticipated increase.
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Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.12z2 - 7z - 12
A. (12z - 4)(z + 3) B. prime C. (3z + 4)(4z - 3) D. (3z - 4)(4z + 3)
Use a graphing calculator to approximate the real zeros of the function defined by f(x). Express decimal approximations to the nearest hundredth.f(x) = x4 + 9.63x3 + 43.35x2 + 104.51x + 101.81
A. -3.12 B. -3.12, 2.51 C. -3.12, -2.51 D. No real zeros
Select the graph of the function and use the zero or root feature to approximate the real zeros of the function.
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A. ?Zeros: 
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B. ?Zeros:
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C. ?Zeros:
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D. ?Zeros:
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E. ?Zeros:
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Express the area of the figure as a polynomial in descending powers of the 
3x - 3
A. -3x2 + 14x + 18 B. 3x2 + 21x - 12 C. 3x2 + 15x - 18 D. 2x2 - 21x + 18