Answer the question.If we apply the quadratic formula and find that the value of b2 - 4ac equals zero, what can we conclude about the solutions?
A. The equation has no real number solutions.
B. The equation has two different rational solutions.
C. The equation has exactly one rational solution.
D. The equation has exactly one irrational solution.
Answer: C
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Encode or decode the given message, as requested, numbering the letters of the alphabet 1 through 26 in their usual order.Use the coding matrix A = 
and its inverse A-1 = 
to decode the cryptogram 
.
A. HELP_THEM B. GOOD_LUCK C. STAY_CALM D. LOOK_DOWN
Approximate to the nearest thousandth, using a calculator.- 
A. -98.954 B. -9791.000 C. -98.949 D. -98.946
Give the domain of the function.f(x) = (-x - 9)1/2
A. [-9, ?) B. (-?, -9] C. (-?, 9] D. [9, ?)
Use a trigonometric substitution to evaluate the integral.
A. ln (e3 + 
)
B. ln(3 + 
) - ln(1 + 
)
C. ln 
D. ln 6 - ln(1 + 
)