Find the value.If F(x, y) = tan-1 
, find Fx(-5, 6) and Fy(-5, 6).
A. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
B. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
C. Fx(-5, 6) = - 
, Fy(-5, 6) = 
D. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
Answer: B
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Change the following fraction to a mixed number.
A. 11
B. 
C. 12
D. 13
Find an equation of the line described. Write the equation in slope-intercept form if possible.Slope - 
, through (4, 4)
A. y = - 
x - 18
B. y = - 
x + 
C. y = 
x - 
D. y = - 
x - 
Solve the problem.The inequality |T - 38| ? 17 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. 15 ? T; The monthly averages are always greater than or equal to 
B. 15 ? T ? 61; The monthly averages are always within 
C. 21 ? T ? 55; The monthly averages are always within 
D. T ? 55; The monthly averages are always less than or equal to 
Write the expression in the standard form a + bi.Given z = 7 - 3i and w = 9 + 6i, evaluate 
.
A. 16 + 3i B. -2 + 9i C. 16 - 3i D. -16 - 3i