x2 + 7x 7 9 Find the point(s) on the graph of y = T where the slope is 3. (Type an ordered pair, using integers or decimals. Round the nal answer to two decimal places as needed. Round all intermediate values to two decimal places as needed. Use a comma to separate answers as needed.) \fA function h(x) is defined in terms of a differentiable f(x). Find an expression for h'(x). h( x) = (x2 +7x-2) f(x) Choose the correct answer below. O A. h'(x ) = (x2 +7x -2) f(x) + (2x+7)f' (x) O B. h'(x ) = (x2 + 7x-2) f' (x) + ( 2x +7)f (x) O c. h' (x ) = (x2 +7x-2) (2x+7 ) +f (x)f' (x ) O D. h'( x ) = (x2 + 7x- 2) (2x+7)f' (x)A function h(x) is defined in terms of a differentiable f(x). Find an expression for h'(x). f(x) h ( x ) = x 3 + 4 h' ( x ) =w(t ) The BMI is given by the formula b(t) = 5, where t is the age of the person, w(t) the weight in kilograms, and h(t) the height in meters. The BMI is usually used as a guideline to determine whether a person is [h(t)]2 overweight or underweight. For example, according to the Centers for Disease Control, a 12-year-old boy is at risk of being overweight if his BMI is between 21 and 24 and is considered overweight if his BMI is above 24. A 13-year-old boy is at risk of being overweight if his BMI is between 22 and 25 and is overweight if his BMI is above 25. Let b(t) denote the BMI. Complete parts (a) through (c) below. (a) At age 12, a boy's weight was 52 kilograms and his height was 1.59 meters. Find his BMI and determine whether he is overweight or at risk of being overweight. b(12) = (Round to two decimal places as needed.)