Solve using matrices. 5x - y - 6z = -10-3x + 5y - 8z = -36 5x - 9y + z = 10
A. (6, 1, -3)
B. (3, 1, 4)
C. (3, 4, 1)
D. (-3, 1, 6)
Answer: B
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Solve the problem.Use Newton's Law of Cooling to find the temperature in the following case. A glass of water with a temperature of 5°C is placed in a room with a temperature of 30°C. One minute later the water has warmed to 9°C. After how many minutes does the water have a temperature that is 90% of the ambient temperature?
A. ? 23 min B. ? 15 min C. ? 12 min D. ? 19 min
Provide an appropriate response.True or false? The graph of Ax2 + Cy2 + Dx + Ey + F = 0 is a parabola if A or C (but not both) is equal to zero.
Answer the following statement true (T) or false (F)
Write in radical form. Assume all variables represent positive real numbers.(mn)1/6
A. (mn)-6
B. (
)6
C. 
D. 
Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.24(x - 3) = 2(12x - 1) - 70
A. Identity; {all real numbers} B. Contradiction; ? C. Conditional; {-72} D. Conditional; {0}