Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.2x + 8y + 6z = 204x + 2y - 2z = -23x - y + z = 11
A. (2, 1, 6)
B. (2, -1, 4)
C. (-1, 2, 1)
D. No solution
Answer: B
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Use grouping symbols to clarify the meaning of the symbolic statement.p ? q ? p ? q ? ~p
A. (p ? q) ? [(p ? q) ? ~p] B. p ? (q ? p) ? (q ? ~p) C. (p ? q) ? (p ? q) ? ~p D. [(p ? q) ? p] ? (q ? ~p)
Multiply.(-0.4y6)3
A. -1.2y18 B. -0.064y18 C. -0.0064y18 D. -0.64y9
List the elements in the sample space of the experiment.A box contains 13 white cards numbered 1 through 13. List the sample space of the event choosing one card with a number greater than 6.
A. {7, 8, 9, 10, 11, 12, 13} B. {1, 2, 3, . . ., 13} C. {6, 7, 8, 9, 10, 11, 12, 13} D. {11}
Solve. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.Write the equivalent decimal and percent for 
.
A. 0.148; 148% B. 0.028; 0.28% C. 0.028; 2.8% D. 0.148; 14.8%