Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.
+ 
A. 
B. 
C. 
D. 
Answer: D
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Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x - 2y + 3z = 114x + y - z = 42x - y + 3z = 10
A. (2, 3, 5) B. (2, -3, 1) C. (-2, -3, 3) D. No solution
Write the compound statement in symbols. Then construct a truth table for the symbolicstatement.Let r = "The food is good," p = "I eat too much,"q = "I'll exercise."If the food is good or if I eat too much, I'll exercise.
A. (r ? p) ? q 
| T | T | T T |
| T | T | F F |
| T | F | T T |
| T | F | F T |
| F | T | T T |
| F | T | F T |
| F | F | T T |
| F | F | F T |
B. (r ? p) ? q
| T | T | T T |
| T | T | F F |
| T | F | T T |
| T | F | F F |
| F | T | T T |
| F | T | F F |
| F | F | T T |
| F | F | F T |
C. r ? (p ? q)
| T | T | T T |
| T | T | F T |
| T | F | T T |
| T | F | F F |
| F | T | T T |
| F | T | F T |
| F | F | T T |
| F | F | F T |
D. r ? p ? q
| T | T | T T |
| T | T | F T |
| T | F | T T |
| T | F | F F |
| F | T | T T |
| F | T | F T |
| F | F | T T |
Approximate the surface area of the figure using 3.14 for ?. Round your answer to the hundredth.
A. 3052.08 m2 B. 339.12 m2 C. 254.34 m2 D. 1017.36 m2
Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 0, y = 2, z = 0; (0, 2, 0) B. x = 5, y = 2, z = 0; (5, 2, 0) C. x = 0, y = 0, z = 2; (0, 0, 2) D. not applicable