Solve and graph. Write the solution set in set-builder and interval notation.x + 4 < -2
A. {x
x > -6}; (-6, ?)
B. {x
x ? -6}; [-6, ?)
C. {x
x ? -6}; (-?, -6]
D. {x
x < -6}; (-?, -6)
Answer: D
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Determine whether the function f(x) = (x + 4) 2 , x ? –4 has an inverse function. If it does, find the inverse function.
a. 
b. f –1 (x) = –(x + 4) 2
c. f –1 (x) = (x + 4) –2
d. 
Skeletal remains of the so-called "Pittsburgh Man", unearthed in Pennsylvania, had lost 74% of the carbon 14 they originally contained. Determine the approximate age of the bones. Round your answer to the nearest year. Hint: the decay constant k for carbon 14 is equal to 0.00012. ? __________ years
Fill in the blank(s) with the appropriate word(s).
Write the augmented matrix for the system. 5x - 2y + 7z = 21-2x + 9y + 8z = -14 9x + 2y + 7z = 21
A. 
B. 
C. 
D. 
Apply the power method to the matrix A below with x0 = 
. Stop when k = 5, and determine the dominant eigenvalue and corresponding eigenvector.A = 
A.
4, 
B.
-1, 
C.
-1, 
D.
4, 