Try to use photo math it gives you the work and answer
Answer:

Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given that the function
y = f(x) = 3 x ( 4 x + 7)
y = 3 x ( 4 x + 7)
y = 12 x² + 21 x ..(i)
Differentiating equation (i) with respective to 'x' , we get


The sample is not randomly chosen. if you call every tenth person in a sample of 40 people
then you have 10, 20, 30, 40
and your sample is 4 people
that seems pretty small. I hope this helps :) . Have a nice day!
Answer:
-4x
Step-by-step explanation:
Answer:
4 years difference
Step-by-step explanation: