Find the direction of the vector  figure 1.png)
a. ? = 30°
b. ? = 150°
c. ? = 120°
d. ? = 210°
e. ? = 60°
e. ? = 60°
Mathematics
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Identify the number as real, complex, pure imaginary, or nonreal complex. More than one of these descriptions may apply.
A. Complex, pure imaginary, nonreal complex B. Nonreal complex C. Complex D. Real, complex
Mathematics
Write a general formula to describe the variation.z varies directly with the sum of the squares of x and y; z = 10 when x = 6 and y = 8
A. z = 
(x2 + y2)
B. z2 = x2 + y2
C. z = 
(x2 + y2)
D. z = 
(x2 + y2)
Mathematics
Identify the values for which the rational expression is undefined.
A. y = 8 or y = -8 B. y = 2 C. y = 64 D. y = 8
Mathematics
Find the average rate of change for the function between the given values.f(x) = x2 + 5x; from 5 to 7
A. 17
B. 12
C. 42
D. 
Mathematics