The correct answer is -4 I am 100 percent sure of it
Answer:
13
Step-by-step explanation:

Differentiate each term with respect to x , then solve y'.
dy/dx = y+2x^3/ x(1+x)
Answer:
21 because there is a 1/4 chance and there are 84 questions, so 1/4 (25%) of 84 is 21.
Step-by-step explanation:
The answer would be 3.
Hope this helps!