Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -5x2 - 15x
A. minimum; - 
B. minimum; 
C. maximum; 
D. maximum; - 
Answer: C
Mathematics
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Use Cramer's rule to solve the linear system.5x + 9y - z = 23 x + 6y - 4z = -144x + y + z = 23
A. (1, 6, 1) B. (5, -1, 6) C. (4, 1, 6) D. (4, -1, -6)
Mathematics
Provide an appropriate response.Use a property of logarithms to evaluate 2log224.
A. 2
B. 
C. 24
D. 
Mathematics
Give the center and radius of the circle described by the equation and graph the equation.(x - 2)2 + (y + 4)2 = 9
A. center (- 2, - 4), r = 3
B. center (2, - 4), r = 3
C. center (- 2, 4), r = 3
D. center (2, 4), r = 3
Mathematics
Write  figure 1.png)
as a fraction.
 figure 2.png)
 figure 3.png)
Mathematics