Question 5 6 pts 1 0 Details Given f(x) = 4x3 - 30x + x + 15 The x-value(s) of inflection point(s) of f(@ ) are c = At = 7 the function Select an answer At x = 2 the function Select an answer Show all work, including how you found any inflection points and how you tested the concavity of the function at the given points.Question 6 10 pts 9 1 0 Details A spherical snowball is melting in such a way that its radius is decreasing at a rate of 0.1 cm/min. At what rate is the volume of the snowball decreasing when the radius is 15 cm. (Note the answer is a positive number). 3 cm min Hint: The volume of a sphere of radius r is V=. Question T E 10 pts '9 1 G) Details A red and a blue car leave Bellevue at the same time. The red car drives south and the blue car drives west. The red car is going 85 kilometers per hour and the blue car is going '95 kilometers per hour. The day.r is overcast. After 5 hours, a} how far apart are the cars? :] kilometers b} how fast is the distance between the cars changing? :] krmr hr {Enter each answer as decimal rounded to 2 places.] Show all work, including a drawing labeled with the variables you are using