Find the derivative of the function at P0 in the direction of u.f(x, y) = 3x2 + 4y, P0(8, 7), u = 3i - 4j
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the polynomial inequality. Express the solution using interval notation.x2 - 4x - 5 ? 0
A. (-?, -1] ? [5, ?) B. (-?, -1] C. [5, ?) D. [-1, 5]
Mathematics
Find the equation of the hyperbola satisfying the given conditions.Vertices: (0, ±4); asymptotes y = ± 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Convert as indicated. If necessary, round to the nearest tenth of a degree.445°C to degrees Fahrenheit
A. 833°F B. 769°F C. 231.4°F D. 267°F
Mathematics
Find the slope and y-intercept (if possible) of the equation of the line. Select the correct answer for the line.
?
?
A. 
m = -3
y-intercept: (0,2)
B.
m is undefined.
There is no y-intercept.
C.
?m = -2
y-intercept: (0,3)
D.
?m is undefined.
There is no y-intercept.
E. ?
m is undefined.
There is no y-intercept.
Mathematics