If possible, find the matrix product.Given A = 
, find A2.
A.
A2 = 
B.
A2 = 
C.
A2 = 
D.
A2 = 
Answer: C
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Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.3w + 3x - 3y - 3z = -4-w - 5x - 5y - z = -23w + 4x + 4y + 3z = -53w + 5x + 5y + 3z = 6
A. (-z, z, -z, z)
B. 
C. 
D. No solution
Use the ratio test to determine if the series converges or diverges.
A. Converges B. Diverges
Solve the problem.In the formula A = Iekt, A is the amount of radioactive material remaining from an initial amount I at a given time t and k is a negative constant determined by the nature of the material. A certain radioactive isotope has a half-life of approximately 1200 years. How many years would be required for a given amount of this isotope to decay to 70% of that amount?
A. 360 yr B. 2084 yr C. 547 yr D. 617 yr
Simplify.
A. 
B. 
C. 
D. 