Find the solutions to the equation by reading the graph.-x2 + 4x + 12 = 0
A. {12}
B. {12, 6}
C. {-2, 6}
D. {-2, 6, 12}
Answer: C
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Use the half-angle formulas to evaluate the given function.cos 22.5°
A. 0.9238 B. 0.5412 C. 0.9808 D. 0.3827
Determine which, if any, of the three statements are equivalent.I) A check was mailed to you on Friday, or the check was not mailed to you on Thursday but the check arrived late.II) If the check was not mailed to you on Friday, then the check was not mailed to you on Thursday but the check arrived late.III) The check arrived late, if and only if it was mailed to you on Friday or it was not mailed to you on Thursday.
A. I and III are equivalent B. I, II and III are equivalent C. I and II are equivalent D. None are equivalent
If A is given by A = 
, find (I - A)-1
What will be an ideal response?
Solve the equation.5(x + 2) - (5x + 10) = 0
A. x = 0 B. all real numbers C. x = 2 D. no solution