Find all the second partial derivatives.  figures 4.png)
What will be an ideal response?
 ANSWER.png)
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Find the solution set for the equation.|5x - 6| = 7
A. 
B. ?
C. 
D. 
Let the universe for both variables x and y be the set {1, 2, 3, 4, 5, 6}. Let p(x,y) = "x divides the sum x + y". Give the truth value of the indicated statement; explain your answer, and give a counterexample in case the statement is false.?x ?y p(x, y)
What will be an ideal response?
?Which of the following statements is not true for all natural numbers greater than 1? ?
A.
?If a > b, and b > c, then a > c.
B.
?If a > b, then a + b < 2a.
C.
?If a < c, then ad < cd.
D.
?If a 
b, and b c, then c a.
E.
?If a > b, then a + b > 2b
Solve the problem.In Country X, teacher pay in 1980 was $20.4 thousand and has increased by approximately $7 thousand per year since then.(i) Complete the table below to help find an expression that stands for the teacher pay (in thousands of dollars) at t years since 1980. Show the arithmetic to help you see a pattern.(ii) Evaluate the expression that you found in part (i) for 
What does your result mean in this situation?
A. (i)
(ii) 61.4; Teacher pay will be about $61.4 thousand in 2014.
B. (i)
(ii) -6.6; Teacher pay will be about -$6.6 thousand in 2014.
C. (i)
(ii) -217.6; Teacher pay will be about -$217.6 thousand in 2014.
D. (i)
(ii) 258.4; Teacher pay will be about $258.4 thousand in 2014.