Given f(x)=x+x2−x3 , determine a. intervals where f(x) is increasing or decreasing, b. local minima and maxima of f(x) , c. intervals where f(x) is concave up and concave down, and b. d. the inflection points of f(x) .

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

answer: 193

explanation:

200-7 = 193

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x