Find all values of x (if any) where the tangent line to the graph of the function is horizontal.y = x3 + 4x2 - 11x + 11
A. 
, -1
B. - 
, 1
C. - 
, 
, 1
D. 1
Answer: B
Mathematics
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Factor the trigonometric expression and simplify.sec4x - 2 sec2x tan2x + tan4x
A. 1 B. sec2x + tan2x C. sec2x (1 + tan2x) D. 2
Mathematics
Solve the triangle, if possible. Approximate values to the nearest tenth when appropriate.? = 98.9°, b = 15.2, a = 30.2
A. ? = 51.3°, ? = 29.8°, c = 23.9 B. ? = 34.8°, ? = 46.3°, c = 23.9 C. ? = 29.8°, ? = 51.3°, c = 23.9 D. No solution
Mathematics
Solve the problem.The length and width of a rectangular playlot have a sum of 82 yards. What dimensions would give the maximum area?
A. Length 31 yards and width 51 yards B. Length 32 yards and width 50 yards C. Length 40 yards and width 42 yards D. Length 41 yards and width 41 yards
Mathematics
Perform the indicated operation.
- 
A. - 
B. - 
C. 
D. 
Mathematics