Answer:
b. (x+6)(x-6)
Step-by-step explanation:
x^2-36 So to get to this answer you can do two things
1. Guess and check
2. Factor it out (which is what I like to do)
In order to get x^2 you need 2xs that are positive which knocks out c and d
Then to get to -36, you need to multiply a positive 6 and a negative 6
(This was poorly explained but if you need anymore help just lmk)
9.5 mm, because the radius is half of the diameter
31.25
Evaluating the limand directly at gives an indeterminate form . Apply L'Hospital's rule once and we get
Again, plugging in returns . Apply the rule once more:
Now, in the denominator, when we get , so the limit is .