Find the direction angle of the vector v. Round to the nearest tenth if necessary. v = 3i - 6j
A. 333.4°
B. 243.4°
C. 206.6°
D. 296.6°
Answer: D
Mathematics
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Use limits to find the derivative function f' for the given function f. Then evaluate f'(a) for the given values of a.f(s) = 
; a = -1, 
A. f'(s) = 
; f'(-1) = 
, f'
= 
B. f'(s) = 
; f'(-1) = 3, f'
= 
C. f'(s) = 
; f'(-1) = 3, f'
= 
D. f'(s) = 
; f'(-1) = - 
, f'
= 
Mathematics
Find the average rate of change for the function between the given values.f(x) = 
; from 2 to 8
A. 
B. - 
C. 7
D. 2
Mathematics
Use the discriminant to determine the number and nature of the solutions to the quadratic equation. Do not solve the equation.4x2 + 5x + 3 = 0
A. two real solutions B. two nonreal solutions C. exactly one real solution
Mathematics
Add. Write the answer in lowest terms as a mixed number.
A. 18
B. 28
C. 29
D. 30
Mathematics