Solve the equation by completing the square.x2 - 6x + 7 = 0
A. 5
B. 
± 3
C. 3 ± 
D. -3 ± 
Answer: C
Mathematics
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Solve by the method of elimination by substitution.0.4x + 0.6y = -2.6x - 0.5y = -0.5
A. x = -0.2, y = -0.3 B. x = -2, y = -3 C. x = -3, y = -2 D. Inconsistent
Mathematics
Find f(g(x)) and g(f(x)) and determine whether the pair of functions f and g are inverses of each other.f(x) = 9x and g(x) = 
A. not inverses B. inverses
Mathematics
Perform the indicated operation.6 c 5 fl oz + 9 c 5 fl oz
A. 16 c 2 fl oz B. 17 c 2 fl oz C. 15 c 2 fl oz D. 16 c 3 fl oz
Mathematics
Perform the indicated operation. Write the result in the form a + bi.6i + (-9 - i)
A. 9 - 5i B. 9 - 7i C. -9 + 7i D. -9 + 5i
Mathematics